2023

11:15 am, Friday, December 8th

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Guest:  Dr. Austin Cummings (Penn State University)

Title: Secondary Lepton Production, Propagation, and Interactions with NuLeptonSim

Abstract: Charged current interactions of neutrinos inside the Earth can result in secondary muons and {\tau} - leptons which are detectable by a large swath of existing and planned neutrino experiments through a wide variety of event topologies. Consideration of such events can improve detector performance and provide unique signatures which help with event reconstruction. In this work, we describe NuLeptonSim, a propagation tool for neutrinos and charged leptons that builds on the fast NuTauSim framework. NuLeptonSim considers energy losses of charged leptons, modelled both continuously for performance or stochastically for accuracy, as well as interaction models for all flavors of neutrinos, including the Glashow resonance. We demonstrate the results from including these effects on the Earth emergence probability of various charged leptons from different flavors of primary neutrino and their corresponding energy distributions. We find that the emergence probability of muons can be higher than that of taus for energies below 100 PeV, whether from a primary muon or {\tau} neutrino, and that the Glashow resonance contributes to a surplus of emerging leptons near the resonant energy. 

1. Secondary Lepton Production, Propagation, and Interactions with NuLeptonSim

2. What Makes A Discovery

3. Phenomenology of superheavy decaying dark matter from string theory

4. Could the TeV emission of starburst galaxies originate from pulsar wind nebulae?

5. Probing nuclear properties and neutrino physics with current and future CEνNS experiment

11:15 am, Friday, December 1st

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1. An extremely energetic cosmic ray observed by a surface detector array

2. New Signal of Atmospheric Tau Neutrino Appearance: Sub-GeV Neutral-Current Interactions in JUNO

3. Neutrino signal from Cygnus region of the Milky Way

4. A nearby source of ultra-high energy cosmic rays

5. On the transition radiation interpretation of anomalous ANITA events

11:15 am, Friday, November 17th

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Two Guests!

Guest: Dr. Bei Zhou (Fermilab)

Paper: First Detailed Calculation of Atmospheric Neutrino Foregrounds to the Diffuse Supernova Neutrino Background in Super-Kamiokande

Guest:  Sayan Saha (graduate student at Indian Institute of Science Education and Research (IISER), Pune, India) 

Title: Optimal Estimators for Cluster Masses using CMB Lensing

Paper: Cluster profiles from beyond-the-QE CMB lensing mass maps

Abstract: Being the largest collapsed structures in the universe, clusters of galaxies offer valuable insights into the nature of cosmic evolution. What we're really curious about is figuring out how many of these clusters exist at different masses and ages (redshifts). But here's the catch: measuring their mass isn't straightforward. So, we use a cosmic 'weighing scale' that uses faint deflections (weak gravitational lensing) of the oldest light in the universe—known as the cosmic microwave background (CMB) —to find out how massive these clusters really are. In this talk, I'll unveil the power of the Maximum-a-posteriori (MAP) method, showcasing its enhanced precision in measuring cluster masses compared to traditional quadratic estimators (QE). I also show how the MAP estimator is able to mitigate the well-known bias in temperature QE, due to the strong non-Gaussianity of the signal at cluster centre, without any scale cut.

1. First Detailed Calculation of Atmospheric Neutrino Foregrounds to the Diffuse Supernova Neutrino Background in Super-KamiokandeFirst Detailed Calculation of Atmospheric Neutrino Foregrounds to the Diffuse Supernova Neutrino Background in Super-Kamiokande

2. Cluster profiles from beyond-the-QE CMB lensing mass maps

3. Data downloaded via parachute from a NASA super-pressure balloon

4. New Signal of Atmospheric Tau Neutrino Appearance: Sub-GeV Neutral-Current Interactions in JUNO

5. Secondary Lepton Production, Propagation, and Interactions with NuLeptonSim

11:15 am, Friday, November 3rd

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1. Demonstrating Agreement between Radio and Fluorescence Measurements of the Depth of Maximum of Extensive Air Showers at the Pierre Auger Observatory

2. The Compton-Pair telescope: A prototype for a next-generation MeV 𝜸-ray observatory

3. All-sky Medium Energy Gamma-ray Observatory: Exploring the Extreme Multimessenger Universe

4. Detectable MeV Neutrino Signals from Neutron-Star Common-Envelope Systems

5. Does or did the supernova remnant Cassiopeia A operate as a PeVatron?

6. Flavor Anisotropy in the High-Energy Astrophysical Neutrino Sky

7. Passive Detection of Subsurface Lunar Ice using the Askaryan Effect with the Cosmic Ray Lunar Sounder (CoRaLS).

11:15 am, Friday, October 27th 

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1. Hadronic processes at work in 5BZB J0630-2406

2. A tolerable candle: the low-ν method with LHC neutrinos 

3. Gamma-ray detection of newly discovered Ancora SNR: G288.8–6.3 

4. High-energy Neutrino Emission Associated with GWs from Binary Black Hole Mergers in AGN Accretion Discs 

5. Probing nuclear physics with supernova gravitational waves and machine learning 

6. Two-detector flavor sensitivity to ultra-high-energy cosmic neutrinos 

7. Temperature profiles of galactic dark matter halos 

11:15 am, Friday, October 19th 

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Guest: Dr. Andrea Albert (Los Alamos National Laboratory)

Title: Searching for Dark Matter with Wide-field TeV Observatories

Abstract: One of the main ways to probe the particle nature of dark matter is to look for particles from DM interactions in space. TeV cosmic gamma rays are a powerful probe and wide field of view observatories play a key role. The High Altitude Water Cherenkov (HAWC) has been surveying the TeV sky for over 8 years and the next generation Southern Wide-field Gamma-ray Observatory (SWGO) is currently being planned. I will show results from DM searches with HAWC and the expected sensitivity of SWGO.

1. Till the core collapses: the evolution and properties of self-interacting dark matter subhalos

2. Galactic Gamma-Ray Diffuse Emission at TeV energies with HAWC Data

3. Very high energy gamma-ray emission beyond 10 TeV from GRB 221009A

4. Determine the Origin of Very-high-energy Gamma Rays from Galactic Sources by the Prospect of Observing Neutrinos

5. Simulating Geomagnetic Effects on Muons in Extensive Air Showers for the EUSO-SPB2 Mission

6. Cosmic-ray energy reconstruction using machine learning techniques

7. Hadronic processes at work in 5BZB J0630-2406

11:30 am, Friday, October 13th 

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Guest: Prof. Rouzbeh Allahverdi (The University of New Mexico)

Title: Probing GeV-scale Dark Particles by Neutron Stars

Abstract: I start by introducing minimal extensions of the Standard Model that involve new particles with baryon-number-violating coupling to quarks. After a brief review of the existing experimental bounds on these models, I mention some ongoing work that uses neutron star binaries to tightly constrain GeV-scale fermions. 

1. Discovery of a radiation component from the Vela pulsar reaching 20 teraelectronvolts

2. Universality of the Neutrino Collisional Flavor Instability in Core Collapse Supernovae

3. First attempt of directionality reconstruction for atmospheric neutrinos in a large homogeneous liquid scintillator detector

4. Tests and characterisation of the KI trigger for fast events on the EUSO-SPB2 Fluorescence Telescope

5. Prospects for a survey of the Galactic plane with the Cherenkov Telescope Array 

11:15 am, Friday, October 6th 

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1. Overview and First Results of EUSO-SPB2

2. POEMMA (Probe of Extreme Multi-Messenger Astrophysics) Roadmap Update

3. A Peters cycle at the end of the cosmic ray spectrum?

4. Review of Neutrino Experiments Searching for Astrophysical Neutrinos

5. Prospects for a survey of the Galactic plane with the Cherenkov Telescope Array

6. CP-Violation with Neutrino Disappearance 

7. Impact of scalar NSI on the neutrino mass hierarchy sensitivity at DUNE, T2HK and T2HKK 

11:30 am, Friday, September 22nd

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1. Detecting High-Energy Neutrinos from Galactic Supernovae with ATLAS 

2. A Unified Picture of Short and Long Gamma-ray Bursts from Compact Binary Mergers

3. A solar gamma ray probe of local cosmic ray electrons

4. Modified temperature redshift relation and UHECR propagation 

5. Energy-dependent flavour ratios in neutrino telescopes from charm 

11:30 am, Friday, September 15th

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1. Where is the End of the Cosmic-Ray Electron Spectrum?

2. Constraining the Properties of Black Hole Seeds from the Farthest Quasars

3. WST CEERS & JADES Active Galaxies at z = 4-7 Violate the Local M∙−M⋆ Relation at >3σ: Implications for Low-Mass Black Holes and Seeding Models

4. Searches for neutrinos in the direction of radio-bright blazars with the ANTARES telescope

5. Fully Bayesian Forecasts with Evidence Networks

6. Contributions of KM3NeT to ICRC2023 

7. Search for Decaying Dark Matter in the Virgo Cluster of Galaxies with HAWC 

11:30 am, Friday, September 8th

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1. The IceCube Collaboration -- Contributions to the 38th International Cosmic Ray Conference (ICRC2023)

2. Dark Matter Capture in Celestial Objects: Treatment Across Kinematic and Interaction Regimes 

3. Where is the End of the Cosmic-Ray Electron Spectrum? 

4. A Survey of Neutrino Flavor Models and the Neutrinoless Double Beta Decay Funnel 

5. Flavor composition of neutrinos from choked gamma-ray bursts 

6. Small-Scale Magnetic Fields are Critical to Shaping Solar Gamma-Ray Emission 

7. Supernova Emission of Secretly Interacting Neutrino Fluid: Theoretical Foundations 

8. Probing the Soft X-ray Properties and Multi-Wavelength Variability of SN2023ixf and its Progenitor 

11:30 am, Friday, July 21st

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Guest: Shirley Weishi Li (UC Irvine)

Title: Old Data, New Forensics: The First Second of SN 1987A Neutrino Emission

Abstract: The next Milky Way supernova will be an epochal event in multi-messenger astronomy, critical to tests of supernovae, neutrinos, and new physics. Realizing this potential depends on having realistic simulations of core collapse. We investigate the neutrino predictions of nearly all modern models (1-, 2-, and 3-d) over the first ≃1 s, making the first detailed comparisons of these models to each other and to the SN 1987A neutrino data. Even with different methods and inputs, the models generally agree with each other. However, even considering the low neutrino counts, the models generally disagree with data. What can cause this? We show that neither neutrino oscillations nor diferent progenitor masses appear to be a sufficient solution. We outline urgently needed work.

1. Small-Scale Magnetic Fields are Critical to Shaping Solar Gamma-Ray Emission

2. Search for Extended Sources of Neutrino Emission in the Galactic Plane with IceCube

3. Shedding light on the Δm^2_{21} tension with supernova neutrinos

4. Neutrinos from GRB 221009A: producing ALPs and explaining LHAASO anomalous γ event

5. Supernova Limits on Muonic Dark Forces

6. Decomposing the Origin of TeV-PeV Emission from the Galactic Plane: Implications of Multi-messenger Observations

7. SN1987A and neutrino non-radiative decay

8. Searches for dark matter decay with ultra-high-energy neutrinos endure backgrounds

9. Decomposing the Origin of TeV-PeV Emission from the Galactic Plane: Implications of Multi-messenger Observations

10. Signatures of afterglows from light dark matter boosted by supernova neutrinos in current and future large underground detectors

11. Challenges in Interpreting the NANOGrav 15-Year Data Set as Early Universe Gravitational Waves Produced by ALP Induced Instability

12. On the Neutrino and Gamma-Ray Emission from NGC 1068

13. Probing Light Dark Matter through Cosmic-Ray Cooling in Active Galactic Nuclei

11:30 am, Friday, July 7th

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Guest: Federica Pompa (University of Valencia)

Title: Galactic cataclysm: Supernova neutronization burst to constraint neutrino mass

Abstract: Supernova (SN) explosions are the most powerful cosmic factories of all flavors, MeV-scale, neutrinos. Their detection is of great importance not only for astrophysics, but also to shed light on neutrino properties. Since the first observation of a SN neutrino signal in the 1987, the international network of SN neutrinos observatories has been greatly expanded, in order to detect the next galactic SN explosion with much higher statistics and accuracy in the neutrino energy-time-flavor space. In this contribution, I will discuss the constraints that we expect to achieve with next-generation neutrino experiments like DUNE and Hyper-Kamiokande, on the absolute value of the neutrino mass, obtained by considering the time delay in the propagation of massive neutrinos from production in the SN environment to their detection. Furthermore, the comparison of sensitivities achieved for the two possible neutrino mass orderings is discussed, as well as the effects due to propagation in the Earth matter.

Guest: Jorge Terol-Calvo (University of Valencia)

Title: Cosmology safe large neutrino masses 

Abstract: Cosmological constraints on the sum of neutrino masses can be relaxed by considering a scenario where the number density of active neutrinos is reduced, while the effective number of neutrino species is maintained by introducing a new component of dark radiation. In this talk, I'll present a UV model based on a U(1) symmetry in the dark sector, which can be either gauged or global, to realize this intriguing concept. The model employs the seesaw mechanism to generate neutrino masses and introduces O(10) generations of massless sterile neutrinos that contribute to the dark radiation component. This framework allows for accommodating active neutrino masses in the range of electron volts (eV), which aligns with the sensitivity range of the KATRIN experiment. We further discuss the phenomenology of the model and identify the parameter space that satisfies the constraints imposed by current observations. Our study sheds light on the interplay between neutrino masses, dark radiation, and the underlying U(1) symmetry in the dark sector, providing insights into the fundamental properties of neutrinos and their cosmological implications. 

11:30 am, Friday, June 30th

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Guest: Anna Suliga (UC Berkeley & UW-Madison)

Title: Distinctive nuclear signatures of low-energy atmospheric neutrinos

Abstract: New probes of neutrino mixing are needed to advance precision studies. One promising direction is via the detection of low-energy atmospheric neutrinos (below a few hundred MeV), to which a variety of near-term experiments will have much-improved sensitivity. Here we focus on probing these neutrinos through distinctive nuclear signatures of exclusive neutrino-carbon interactions -- those that lead to detectable nuclear-decay signals with low backgrounds -- in both neutral-current and charged-current channels. Here the neutral-current signature is a line at 15.11 MeV and the charged-current signatures are two- or three-fold coincidences with delayed decays. We calculate the prospects for identifying such events in the Jiangmen Underground Neutrino Observatory (JUNO), a large-scale liquid-scintillator detector. A five-year exposure would yield about 16 neutral-current events (all flavors) and about 16 charged-current events (mostly from νe+ν¯e, with some from νμ+ν¯μ), and thus roughly 25\% uncertainties on each of their rates. Our results show the potential of JUNO to make the first measurement of sub-100 MeV atmospheric neutrinos. They also a step towards multi-detector studies of low-energy atmospheric neutrinos, including with the goal of identifying additional distinctive nuclear signatures for carbon and other targets.

Guest: Victor Valera-Baca (NBI)

Title: Exploring neutrino--matter interactions at the EeV frontier

Abstract: Neutrino interactions with protons and neutrons probe their deep structure and may reveal new physics. The higher the neutrino energy, the sharper the probe. So far, the neutrino-nucleon (νN) cross section is known across neutrino energies from a few hundred MeV to a few PeV. Soon, ultra-high-energy (UHE) cosmic neutrinos, with energies above 100 PeV, could take us farther. So far, they have evaded discovery, but upcoming UHE neutrino telescopes endeavor to find them. I will present the first detailed measurement forecasts of the UHE νN cross section, geared to IceCube-Gen2, one of the leading detectors under planning. We use state-of-the-art ingredients in every stage of our forecasts: in the UHE neutrino flux predictions, the neutrino propagation inside Earth, the emission of neutrino-induced radio signals in the detector, their propagation and detection, and the treatment of backgrounds.

1. The NANOGrav 15 yr Data Set: Evidence for a Gravitational-wave Background

2. Observation of high-energy neutrinos from the Galactic plane

3. Pion decay constraints on exotic 17 MeV vector bosons

4. Supernovae and superbursts by dark matter clumps

5. Thermodynamics of oscillating neutrinos

6. Atmospheric Lepton Fluxes via Two-Dimensional Matrix Cascade Equations

7. Electromagnetic Cascade Emission from Neutrino-Coincident Tidal Disruption Events

8. Pion decay constraints on exotic 17 MeV vector bosons

9. New physics in multi-electron muon decays

10. Neutrino oscillation bounds on quantum decoherence

11. Neutrino decoherence and violation of the strong equivalence principle

12. Off-axis MeV and very-high-energy gamma-ray emissions from structured gamma-ray burst jets

13. Constraining MeV-scale axion-like particles with Fermi-LAT observations of SN 2023ixf

14. Unveiling Neutrino Halos with CMB Lensing

15. Setting an upper limit for the total TeV neutrino flux from the disk of our Galaxy

11:30 am, Friday, June 23rd

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1. JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo

2. A new derivation of the Hubble constant from $γ$-ray attenuation using improved optical depths for the Fermi and CTA era

3. Does NANOGrav observe a dark sector phase transition?

4. Breaking degeneracies in the first galaxies with clustering

5. Optomechanical Dark Matter Direct Detection

6. Anisotropic strong lensing as a probe of dark matter self-interactions

7. Gravitational Wave Probes on Self-Interacting Dark Matter Surrounding an Intermediate Mass Black Hole

8. Evolution of Tau-Neutrino Lepton Number in Protoneutron Stars due to Active-Sterile Neutrino Mixing

9. Best-case scenarios for neutrino capture experiments

11:30 am, Friday, June 16th

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1. White Dwarfs in Dwarf Spheroidal Galaxies: A New Class of Compact-Dark-Matter Detectors

2. Old Data, New Forensics: The First Second of SN 1987A Neutrino Emission

3. Neutrino signal from Seyfert galaxies

4. R-process beta-decay neutrino flux from binary neutron star merger and collapsar

5. Constraint on intergalactic magnetic field from Fermi/LAT observations of the “pair echo” of GRB 221009A

6. Dark Matter Is The New BBN

7. A tera-electronvolt afterglow from a narrow jet in an extremely bright gamma-ray burst 221009A

11:30 am, Friday, June 9th

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1. Milky Way satellite velocities reveal the Dark Matter power spectrum at small scales

2. A Leptonic Model for Neutrino Emission From Active Galactic Nuclei

3. Diffuse Ultra-High-Energy Gamma-Ray Emission From TeV Halos

4. TeV halos and the role of pulsar wind nebulae as sources of cosmic ray positrons

5. The Maximum Energy of Shock-Accelerated Cosmic Rays

6. Multi-messenger observations of core-collapse supernovae: Exploiting the standing accretion shock instability

7. An optimized search for dark matter in the galactic halo with HAWC

8. Extragalactic neutrino factories

9. The First LHAASO Catalog of Gamma-Ray Sources

10. Diffuse Ultra-High-Energy Gamma-Ray Emission From TeV Halos

11. Confirmation of the spectral excess in DAMIC at SNOLAB with skipper CCDs

12. Getting the most on supernova axions

11:30 am, Friday, May 26th

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Guest: Toni Bertolez-Martinez (Barcelona U)

Title: IceCube and the origin of ANITA-IV events

Abstract: Recently, the ANITA collaboration announced the detection of new, unsettling Ultra-High-Energy (UHE) events. Understanding their origin is pressing to ensure success of the incoming UHE neutrino program. In this talk, I will discuss the ANITA-IV events in contrast with the lack of observations in the IceCube Neutrino Observatory. I will introduce a general framework to study the compatibility between these two observatories both in the SM and Beyond Standard Model (BSM) scenarios.  Finally, I will discuss the constraints on BSM and highlight the importance of simultaneous observations by high-energy optical neutrino telescopes and new, UHE detectors to uncover cosmogenic neutrinos or discover new physics.

Guest: Stephan Meighen-Berger (U. Melbourne)

Title: Prometheus: An Open-Source Neutrino Telescope Simulation

Abstract: The construction of a worldwide network of gigaton-scale neutrino telescopes aims to address multiple open questions in physics, such as the origin of astrophysical neutrinos and the acceleration mechanism of high-energy cosmic rays. Besides astrophysics, neutrino telescopes probe center-of-mass energies similar to colliders, offering an additional window into high-energy particle interactions. Currently, there are no publicly available simulation tools for these detectors, leading to duplication in effort for each experiment and hindering the testing of theoretical models. While these detectors are built in ice or water at different locations, they operate on the same detection principle: Using multiple optical modules to detect Cherenkov photons emitted by charged particles. Using this, we developed Prometheus, an open-source simulation tool that offers a common simulation chain for all neutrino telescopes. It can inject neutrinos, propagate their interaction products, and model the amount of light reaching the optical modules of a user-defined detector in either ice or water. We will show its runtime performance, highlight successes in reproducing simulation results from multiple ice- and water-based observatories, and discuss simulation sets that we have made publicly available for various detectors.

1. Extragalactic neutrino factories

2. Fast Neutrino Flavor Conversions can Help and Hinder Neutrino-Driven Explosions

3. Weighing neutrinos at the damping tail

4. Machine Learning for Quantum-Enhanced Gravitational-Wave Observatories

5. Diffuse Neutrino Flux Based on the Rates of Core-Collapse Supernovae and Black Hole Formation Deduced from a Novel Galactic Chemical Evolution Model

6. First measurement of η production in neutrino interactions on argon with MicroBooNE

7. Composite Dark Matter and Neutrino Masses from a Light Hidden Sector

11:30 am, Friday, May 19th

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Guest: Rasmi Hajjar (IFIC)

Title: Earth tomography with supernova neutrinos at future neutrino detectors

Abstract: Earth neutrino tomography is a realistic possibility with current and future neutrino detectors, complementary to geophysics methods. The two main approaches are based on either partial absorption of the neutrino flux as it propagates through the Earth (at energies about a few TeV) or on coherent Earth matter effects affecting the neutrino oscillations pattern (at energies below a few tens of GeV). In this talk I will focus on the latter approach focusing on supernova neutrinos with tens of MeV. Whereas at GeV energies, Earth matter effects are driven by the atmospheric mass-squared difference, at energies below ∼ 100 MeV, it is the solar mass-squared difference what controls them. Unlike solar neutrinos, which suffer from significant weakening of the contribution to the oscillatory effect from remote structures due to the neutrino energy reconstruction capabilities of detectors, supernova neutrinos can have higher energies and thus, can better probe the Earth’s interior. We revisit this possibility, using the most recent neutrino oscillation parameters and up-to-date supernova neutrino spectra. The capabilities of future neutrino detectors, such as DUNE, Hyper-Kamiokande and JUNO are presented, including the impact of the energy resolution and other factors. Assuming a supernova burst at 10 kpc, we show that the average Earth’s core density could be determined within ∼ 10% at 1σ confidence level, being Hyper-Kamiokande, with its largest mass, the most promising detector to achieve this goal.

1. Earth tomography with supernova neutrinos at future neutrino detectors

2. Identifying Extended PeVatron Sources via Neutrino Shower Detection

3. A Leptonic Model for Neutrino Emission From Active Galactic Nuclei

4. Galactic diffuse gamma-ray emission from GeV to PeV energies in light of up-to-date cosmic ray measurements

5. Exploring the spectrum of stochastic gravitational-wave anisotropies with pulsar timing arrays

6. TeV halos and the role of pulsar wind nebulae as sources of cosmic ray positrons

7. The Maximum Energy of Shock-Accelerated Cosmic Rays

8. Multi-messenger observations of core-collapse supernovae: Exploiting the standing accretion shock instability

9. An optimized search for dark matter in the galactic halo with HAWC

11:30 am, Friday, May 5th

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1. Multi-messenger signals of heavy axionlike particles in core-collapse supernovae: two-dimensional simulations

2. The self-confinement of electrons and positrons from dark matter

3. Prometheus: An Open-Source Neutrino Telescope Simulation

4. Revisiting constraints on the photon rest mass with cosmological fast radio bursts

5. The rocket effect mechanism in neutron stars in supernova remnants

6. Spatial coincidence between ultra-high energy cosmic rays and TeV gamma rays in the direction of GRB 980425/SN 1998bw

7. Impacts of dark matter interaction on nuclear and neutron star matter within the relativistic mean-field model

8. The dark matter unitarity bound at NLO

9. Precision CMB constraints on eV-scale bosons coupled to neutrinos

10. Constraining the dark matter interpretation of the positron excess with $γ$-ray data

11:30 am, Friday, April 28th

Guest: Anupam Ray (UC, Berkeley) 

Title: Going Underground or Listening to the Sky? 

Abstract: Dark Matter (DM) remains mysterious. Despite decades of experimental efforts, its microscopic identity is still unknown. Terrestrial detectors are placing stringent exclusions on various parts of the DM parameter space, however, there exist a few blind-spots. In this talk, I will demonstrate how existing GW detectors can be used to unravel the particle nature of DM. More specifically, by observing low mass black hole mergers, existing GW detectors can provide unprecedented sensitivity to the weakly-interacting heavy dark matter, a blind spot to the terrestrial DM detectors. I will also walk you through how continued existence of a variety of stellar objects can probe strongly-interacting heavy DM, a yet another blind spot. 

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1. Prospects for annihilating dark matter from M31 and M33 observations with the Cherenkov Telescope Array

2. Search for correlations of high-energy neutrinos detected in IceCube with radio-bright AGN and gamma-ray emission from blazars

3. Constraints on the e± Pair Injection of Pulsar Halos: Implications from the Galactic Diffuse Multi-TeV Gamma-ray Emission

4. Repeated patterns of gamma-ray flares reveal structured jets of blazars as likely neutrino sources

5. Terzina on board NUSES: a pathfinder for EAS Cherenkov Light Detection from space

6. Improving the Composition of Ultra High Energy Cosmic Rays with Ground Detector Data

7. First Detection of the Powerful Gamma Ray Burst GRB221009A by the THEMIS ESA and SST particle detectors on October 9, 2022

8. Multi-messenger signals of heavy axionlike particles in core-collapse supernovae: two-dimensional simulations

9. Constraining the onset density for the QCD phase transition with the neutrino signal from core-collapse supernovae

10. Cosmic ray transport in large-amplitude turbulence with small-scale field reversals

11. Hard TeV Gamma-Ray Afterglows of Nearby GRB 190829A as a Tentative Signature of Ultra-High-Energy Cosmic Rays Accelerated in Gamma-Ray Burst Jets

12. X-ray radiative transfer in full 3D with SKIRT

13. Particle-in-Cell Simulations of Relativistic Magnetic Reconnection with Advanced Maxwell Solver Algorithms

14. The Magnetohydrodynamic-Particle-In-Cell Module in Athena++: Implementation and Code Tests

15. Effects of large-scale magnetic fields on the observed composition of ultra high-energy cosmic rays

16. A Cross-correlation Study between IceCube Neutrino Events and the Fermi Unresolved Gamma-ray Sky

17. Potential of Constraining Propagation Parameters of Galactic Cosmic Rays with the High Energy cosmic-Radiation Detection facility onboard China's Space Station

18. Detectability of Late-time Supernova Neutrinos with Fallback Accretion onto Protoneutron star

19. Searching for Heavy Dark Matter near the Planck Mass with XENON1T

20. High-Frequency Gravitational Wave Detection via Optical Frequency Modulation

11:30 am, Friday, April 21st

14. Prospects for annihilating dark matter from M31 and M33 observations with the Cherenkov Telescope Array

15. Prospects for ultra-high-energy particle acceleration at relativistic shocks

16. Measuring the Cosmic X-ray Background in 3-20keV with Straylight from NuSTAR

17. Constraints on the proton fraction of cosmic rays at the highest energies and the consequences for cosmogenic neutrinos and photons

18. Accurate Inverse-Compton Models Strongly Enhance Leptophilic Dark Matter Signals

19. Diffusion Coefficients of 56Fe in C-O and O-Ne White Dwarfs

20. Signatures of Cosmic Ray Heating in 21-cm Observables

21. Probing neutrino production in high-energy astrophysical neutrino sources with the Glashow Resonance

22. Hard TeV Gamma-Ray Afterglows of Nearby GRB 190829A as a Tentative Signature of Ultra-High-Energy Cosmic Rays Accelerated in Gamma-Ray Burst Jets

23. Muons in EASs with E0=1019 eV according to data of the Yakutsk Array

24. No evidence for p- or d-wave dark matter annihilation from local large-scale structure

25. Fabrication of a 64-Pixel TES Microcalorimeter Array with Iron Absorbers Uniquely Designed for 14.4-keV Solar Axion Search

11:30 am, Friday, April 14th

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1. There and back again: Solar cycle effects in future measurements of low-energy atmospheric neutrinos

2. Solar Energetic Particle Acceleration at a Spherical Shock with the Shock Normal Angle $\theta_{B_n}$ Evolving in Space and Time

3. Gamma-Ray Emission in the Seyfert Galaxy NGC 4151: Investigating the Role of Jet and Coronal Activities

4. Gamma-ray emission from the Seyfert galaxy NGC 4151 and multimessenger implications for ultra-fast outflows

5. Pure Spectroscopic Constraints on UV Luminosity Functions and Cosmic Star Formation History From 25 Galaxies at z_{spec}=8.61−13.20 Confirmed with JWST/NIRSpec

6. Probing neutrino production in high-energy astrophysical neutrino sources with the Glashow Resonance

7. Impact of dark matter spikes on the merger rates of Primordial Black Holes

8. The Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters

9. Detecting Stochastic Wave Dark Matter with Fermi-LAT γ-ray Pulsar Timing Array

10. Observing Supernova Neutrino Light Curves with Super-Kamiokande. IV. Development of SPECIAL BLEND: a New Public Analysis Code for Supernova Neutrinos

11. GRB 211211A-like Events and How Gravitational Waves May Tell Their Origin

12. Fermionic Dark Matter: Physics, Astrophysics, and Cosmology

13. JUNO as a Probe of the Pseudo-Dirac Nature using Solar Neutrinos

14. Benchmarks of Dark Energy

11:30 am, Friday, April 7th

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1. Searching for dark matter subhalos in the Fermi-LAT catalog with Bayesian neural networks

2. Supermassive Dark Star candidates seen by JWST?

3. Impact of cross-section uncertainties on supernova neutrino spectral parameter fitting in the Deep Underground Neutrino Experiment

4. Spontaneous Human Combustion rules out all standard candidates for Dark Matter

5. Solar radio emissions and ultralight dark matter

6. Investigating starburst-driven neutrino emission from galaxies in the Great Observatories All-Sky LIRG Survey

7. Sensitivity to Supernovae Average $ν_x$ Temperature with Neutral Current Interactions in DUNE

8. Searching for dark matter subhalos in the Fermi-LAT catalog with Bayesian neural networks

9. A novel prediction for secondary positrons and electrons in the Galaxy

10. Detection of extended gamma-ray emission around the Geminga pulsar with H.E.S.S

11. Anomalous Tau Neutrino Appearance from Light Mediators in Short-Baseline Neutrino Experiments

11:30 am, Friday, Mar 31st

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1. A Search for IceCube sub-TeV Neutrinos Correlated with Gravitational-Wave Events Detected By LIGO/Virgo

2. Sensitivity to point-like sources of the ALTO atmospheric particle detector array, designed for 200GeV--50TeV γ-ray astronomy

3. Measuring the speed of light with updated Hubble diagram of high-redshift standard candles

4. Alignment of the Alpha Magnetic Spectrometer (AMS) in space

5. Constraints on the baryonic load of gamma-ray bursts using ultra-high energy cosmic rays

6. Modulation of cosmic ray anti-protons in the heliosphere: simulations for a solar cycle

7. Extreme ion acceleration at extragalactic jet termination shocks

8. Data driven analysis of cosmic rays in the heliosphere: diffusion of cosmic protons

9. The Greisen Function and its Ability to Describe Air-Shower Profile

10. Fluxes and spectral indices of rare and abundant cosmic ray nuclei according to the NUCLEON space experiment

11. Flavor conversions with energy-dependent neutrino emission and absorption

12. The jet apparent motion and central engine study of Fermi blazars

13. Update on the indication of a mass-dependent anisotropy above 1018.7eV in the hybrid data of the Pierre Auger Observatory

14. He abundance of Dense Circumstellar Clumps in the Cassiopeia A Supernova Remnant

15. Gamma rays from Nebulae around Recurrent Novae

16. Prospects for detection rate of very-high-energy γ-ray emissions from short γ-ray bursts with the HADAR experiment

17. Ultra-peripheral collisions of charged hadrons in extensive air showers

18. Sensitivity of the Cherenkov Telescope Array to spectral signatures of hadronic PeVatrons with application to Galactic Supernova Remnants

19. Testing Model Predictions of Depth of Air-Shower Maximum and Signals in Surface Detectors using Hybrid Data of the Pierre Auger Observatory

20. Borexino's search for low-energy neutrinos associated with gravitational wave events from GWTC-3 database

21. First Dark Matter Search with Nuclear Recoils from the XENONnT Experiment

22. The Galactic TeV sky: sources or diffuse emission?

11:30 am, Friday, Mar 24th

Guest: Hidetoshi Omiya (Kyoto University)

Title: Impact of multiple modes on the evolution of self-interacting axion condensate around rotating black holes

Abstract: Ultra-light particles, such as axions, form a macroscopic condensate around a highly spinning black hole by the superradiant instability. Due to its macroscopic nature, the condensate opens the possibility of detecting the axion through gravitational wave observations. However, the precise evolution of the condensate must be known for the actual detection. For future observation, we numerically study the influence of the self-interaction, especially interaction between different modes, on the evolution of the condensate in detail. First, we focus on the case when condensate starts with the smallest possible angular quantum number. For this case, we perform the non-linear calculation and show that the dissipation induced by the mode interaction is strong enough to saturate the superradiant instability, even if the secondary cloud starts with quantum fluctuations. Our result indicates that explosive phenomena such as bosenova do not occur in this case. We also show that the condensate settles to a quasi-stationary state mainly composed of two modes, one with the smallest angular quantum number for which the superradiant instability occurs and the other with the adjacent higher angular quantum number. We also study the case when the condensate starts with the dominance of the higher angular quantum number. We show that the dissipation process induced by the mode coupling does not occur for small gravitational coupling. Therefore, bosenova might occur in this case.

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1. Hunting for Neutral Leptons with Ultra-High-Energy Cosmic Ray

2. Limits on Neutrino Emission from GRB 221009A from MeV to PeV using the IceCube Neutrino Observatory

3. Observation of Seasonal Variations of the Flux of High-Energy Atmospheric Neutrinos with IceCube

4. Axion-sourced fireballs from supernovae

5. Dark matter from hot big bang black holes

6. Earth tomography with supernova neutrinos at future neutrino detectors

7. Towards Resolving the Gallium Anomaly

8. Prospects for joint cosmic ray and neutrino constraints on the evolution of trans-GZK proton sources

9. Constraints on axion-like polarization oscillations in the cosmic microwave background with POLARBEAR

10. The physics of gravitational waves

11. Flavor solitons in dense neutrino gases

11:30 am, Friday, Mar 10th

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1. Where are the Cascades from Blazar Jets? An Emerging Tension in the γ-ray sky

2. Constraining High-Energy Neutrino Emission from Supernovae with IceCube

3. Evaporation Barrier for Dark Matter in Celestial Bodies

4. TASI Lectures on the Particle Physics and Astrophysics of Dark Matter

5. Dark Matter Annihilation Inside Large Volume Neutrino Detectors

6. The Neutrino Magnetic Moment Portal and Supernovae: New Constraints and Multimessenger Opportunities

7. Observation of Seasonal Variations of the Flux of High-Energy Atmospheric Neutrinos with IceCube

8. Prospects for joint cosmic ray and neutrino constraints on the evolution of trans-GZK proton sources

11:30 am, Friday, Mar 3rd

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1. Direct Measurements of Galactic Cosmic Rays

2. The Neutrino Magnetic Moment Portal and Supernovae: New Constraints and Multimessenger Opportunities

3. Constraints on the Cosmological Coupling of Black Holes from the Globular Cluster NGC 3201

4. Can black holes be a source of dark energy?

5. GRB 221009A, The BOAT

6. Quantifying the tension between cosmological and terrestrial constraints on neutrino masse

7. daemonflux: DAta-drivEn MuOn-calibrated Neutrino Flux

8. Nuclear and electromagnetic cascades induced by ultrahigh-energy cosmic rays in radio galaxies: implications for Centaurus A

9. The origin of power-law spectra in relativistic magnetic reconnection

11:30 am, Friday, Feb 24th

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1. Observational evidence for cosmological coupling of black holes and its implications for an astrophysical source of dark energy

2. The Neutrino Magnetic Moment Portal and Supernovae: New Constraints and Multimessenger Opportunities

3. A Search for Low-mass Dark Matter via Bremsstrahlung Radiation and the Migdal Effect in SuperCDMS

4. The spectra of IceCube Neutrino (SIN) candidate sources -- III. Optical spectroscopy and source characterization of the full sample

5. Interpretation of the observed neutrino emission from three Tidal Disruption Events

6. Using the Sun and the Moon as Source masses and the Earth's Rotation as a Modulation to Search for Exotic Spin-Dependent Interactions at Astronomical Distances

7. Measurement of 19F(p,γ)20Ne reaction suggests CNO break-out in first stars

8. Axion Star Explosions: A New Source for Axion Indirect Detection

9. How to measure the reactor neutrino flux below the inverse beta decay threshold with CEνNS

10. Primordial Gravitational Waves From Black Hole Evaporation in Standard and Non-Standard Cosmologies

11. Implication of GRB 221009A: Can TeV Emission Come from the GRB Prompt Phase?

11:30 am, Friday, Feb 17th

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1. Solar-cycle and Latitude Variations in the Internetwork Magnetism

2. Observational evidence for cosmological coupling of black holes and its implications for an astrophysical source of dark energy

3. The Gravitational-Wave Signature of Core-Collapse Supernovae

4. Limits on Neutrino Emission from GRB 221009A from MeV to PeV using the IceCube Neutrino Observatory

5. Search for Gamma-Ray Spectral Lines from Dark Matter Annihilation up to 100 TeV toward the Galactic Center with MAGIC

6. Searching for TeV Dark Matter in Irregular dwarf galaxies with HAWC Observatory

7. The first JWST spectrum of a GRB afterglow: No bright supernova in observations of the brightest GRB of all time, GRB 221009A

8. Search for neutrino counterparts to the gravitational wave sources from O3 catalogues with the ANTARES detector

11:30 am, Friday, Feb 10th

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1. Probing the pulsar explanation of the Galactic-Center GeV excess using continuous gravitational-wave searches

2. Can Neutrino Self-interactions Save Sterile Neutrino Dark Matter?

3. Strong NIR emission following the long duration GRB 211211A: Dust heating as an alternative to a kilonova

4. Revisiting ultrahigh-energy constraints on decaying super-heavy dark matter

5. Signals of a New Gauge Boson from IceCube and Muon g−2

6. GRB 221009A: Discovery of an Exceptionally Rare Nearby and Energetic Gamma-Ray Burst

7. The Irreducible Axion Background

8. Cosmological gravitational particle production of massive spin-2 particles

9. High-energy neutrino emission associated with gravitational-wave signals: effects of cocoon photons and constraints on late-time emission

10. Lack of Bright Supernova Emission in the Brightest Gamma-ray Burst, GRB~221009A

11. Reinterpretation of searches for long-lived particles from meson decays

11:30 am, Friday, Feb 3rd

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1. First Search for the Majorana Nature of Neutrinos in the Inverted Mass Ordering Region with KamLAND-Zen

2. Detection of Ultra High Energy Cosmic Rays and Neutrinos with Lunar Orbital Radio Telescope

3. Probing the pulsar explanation of the Galactic-Center GeV excess using continuous gravitational-wave searches

4. SN1987A neutrino burst: limits on flavor conversion

5. Photons from dark photon solitons via parametric resonance

6. Roles of fast neutrino-flavor conversion on the neutrino-heating mechanism of core-collapse supernova

7. Implications of MicroBooNE's low sensitivity to electron antineutrino interactions in the search for the MiniBooNE excess

8. Scalar Co-SIMP Dark Matter: Models and Sensitivities

9. Constraining Co-Varying Coupling Constants from Globular Cluster Age

11:30 am, Friday, Jan 27th

Guest: Christopher Cappiello (Queen's U)

Title: An Analytic Approach to Light Dark Matter Propagation

Abstract: If dark matter interacts too strongly with nuclei, it could be slowed to undetectable speeds in Earth's crust or atmosphere before ever reaching a detector. For sub-GeV dark matter, analytic approximations appropriate for heavier dark matter fail, necessitating the use of computationally expensive simulations. We present a new method of modeling attenuation of light dark matter in the Earth, based on the approximation that the scattering is isotropic in the lab frame. We show that this approach agrees well with Monte Carlo results, and can be much faster when the number of scatterings becomes large, as the runtime for Monte Carlo methods increases exponentially with cross section. We use this method to model attenuation for sub-dominant dark matter--that is, particles that make up a small fraction of the dark matter density--and show that previous work on sub-dominant dark matter overestimates the sensitivity of direct detection experiments.

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12. An Analytic Approach to Light Dark Matter Propagation

13. On the Injection Scale of the Turbulence in the Partially Ionized Very Local Interstellar Medium

14. Measurement of isotopic separation of argon with the prototype of the cryogenic distillation plant Aria for dark matter searches

15. Bombardment of CO ice by cosmic rays: I. Experimental insights into the microphysics of molecule destruction and sputtering

16. Supercritical colliding wind binaries

17. The formation of hard VHE spectra from GRB afterglow via Two-Zone Synchrotron Self-Compton Emission

18. Search of the pair echo signatures in the high-energy light curve of GRB190114C

19. Catching profound optical flares in blazars

20. Reacceleration of Galactic Cosmic Rays Beyond the Knee at the Termination Shock of a Cosmic-Ray-Driven Galactic Wind

21. NGC 1068 constraints on neutrino-dark matter scattering

22. Probing the pulsar explanation of the Galactic-Center GeV excess using continuous gravitational-wave searches

23. Localisation of gamma-ray bursts from the combined SpIRIT+HERMES-TP/SP nano-satellite constellation

24. Energy Spectrum of Ultrahigh-Energy Cosmic Rays according to Data from Ground-Based Scintillation Detectors of the Yakutsk EAS Array

25. Galactic Population Synthesis of Radioactive Nucleosynthesis Ejecta

26. Retuning the radio astronomical search for axion dark matter with neutron stars

27. Radiative Acceleration of Dense Circumstellar Material in Interacting Supernovae

28. Understanding the TeV γ-ray emission surrounding the young massive star cluster Westerlund 1

29. Hadronic versus leptonic origin of gamma-ray emission from supernova remnants

30. Probing gamma-ray bursts observed at very high energies through their afterglow

31. Dark Photon Bremsstrahlung and Ultra-High-Energy Cosmic Rays

32. Detection of the Crab Nebula using a Random Forest Analysis of the first TAIGA IACT Data

33. Can Neutrino Self-interactions Save Sterile Neutrino Dark Matter?

34. Search for inelastic dark matter-nucleus scattering with the PICO-60 CF3I and C3F8 bubble chambers

11:30 am, Friday, Jan 20th

Use this link to access the meeting: Cancelled, take a break.

1. ALP induced polarization effects on photons from blazars

2. Supernova model discrimination with a kilotonne-scale Gd-H2O Cherenkov detector

3. Multi-class classification of Fermi-LAT sources with hierarchical class definition

4. X-ray polarimetry reveals the magnetic field topology on sub-parsec scales in Tycho's supernova remnant

5. Multimessenger Approaches to Supermassive Black Hole Binary Detection and Parameter Estimation II: Optimal Strategies for a Pulsar Timing Array

6. The Use of the Signal at an Optimal Distance from the Shower Core as a Surrogate for Shower Size

7. The mass of charged pions in neutron star matter

8. Mineral Detection of Neutrinos and Dark Matter. A Whitepaper

9. Effective Shielding of ≲ 10 GeV Cosmic Rays from Dense Molecular Clumps

10. Dissecting the broadband emission from γ-ray blazar PKS 0735+178 in search of neutrinos

11. Evolution and feedback of AGN Jets of different Cosmic-ray Composition

12. Many-body neutrino flavor entanglement in a simple dynamic model

13. Solaris: A Focused Solar Polar Discovery-class Mission to achieve the Highest Priority Heliophysics Science Now

11:30 am, Friday, Jan 13th

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1. The Cherenkov Telescope Array Will Test Whether Pulsars Generate the Galactic Center Gamma-Ray Excess

2. Hint for a TeV neutrino emission from the Galactic Ridge with ANTARES

3. Constraints on heavy decaying dark matter from 570 days of LHAASO observations

4. Bump-hunting in the diffuse flux of high-energy cosmic neutrinos

5. HAWC Detection of a TeV Halo Candidate Surrounding a Radio-quiet pulsar

6. Can Sterile Neutrino Explain Very High Energy Photons from GRB221009A?

7. Light scalar explanation for 18 TeV GRB 221009A

8. A prototype tank for the SWGO detector

9. Thermal Control System to Easily Cool the GAPS Balloon-borne Instrument on the Ground

10. Cosmic-ray Boron Flux Measured from 8.4 GeV/n to 3.8 TeV/n with the Calorimetric Electron Telescope on the International Space Station

11. Gamma-ray emission from spectrally resolved cosmic rays in galaxies

12. New Particle Identification Approach with Convolutional Neural Networks in GAPS

13. Constraints from the duration of supernova neutrino burst on resonant light gauge boson production by neutrinos

14. Celestial Objects as Strongly-Interacting Asymmetric Dark Matter Detectors

15. How, where and when do cosmic rays reach ultrahigh energies?

16. Probing LHAASO Galactic PeVatrons through gamma-ray and neutrino correspondence

17. Searching for Ultralight Dark Matter Conversion in Solar Corona using LOFAR Data

18. High-energy neutrinos and gamma rays from winds and tori in active galactic nuclei

19. Strong Lensing of High-Energy Neutrinos

20. Updating the 56Ni Problem in Core-collapse Supernova Explosion

21. On the gamma-ray emission from the core of the Sagittarius dwarf galaxy

22. The impact of dark matter-baryon relative velocity on the 21cm forest

23. A Gap No More: Mechanism for Non-Nuclear Energy to Fill in the Black Hole Mass Gap

24. MeV to multi-TeV thermal WIMPs are all observationally allowed

25. Updated constraints on axion-like particles from temporal information in supernova SN1987A gamma-ray data

26. Axions from Primordial Black Holes