Weekly on Friday 11:30 am - 12:30 pm, at PRB M2005

COMING UP!

New time!
11:30 am, Friday, April 24th at PRB M2005 (Price Place)

Special talk(~30 mins) by Laura Lopez (CfA, Harvard)

Observational Tests of Cosmic-ray Diffusion in the Magellanic Clouds
 
Cosmic rays (CRs) play an important role in the interstellar medium: they ionize
dense molecular gas, they are responsible for the light elements in the periodic 
table, and they account for 20% of the ISM energy budget. However, the means
by which CRs are first accelerated and then transported through external
galaxies are not well understood. I will present results from a recent study of the
Magellanic Clouds to constrain CR transport using Fermi gamma-ray 
observations. I will show how we have characterized the spatial distribution of
gamma rays in the LMC and SMC and used the findings, in conjunction with 
available multiwavelength data, to constrain CR transport based on how the 
emission depends on physical parameters, such as gas density, massive star
formation, magnetic field structure, and turbulence properties.



AstroParticle lunch paper list:
Spring 2015

12:30 pm, Friday, April 17th at PRB M2005 (Price Place)

  1. Dark matter annihilation and decay profiles for the Reticulum II dwarf spheroidal galaxy
  2. Stellar Kinematics and Metallicities in the Ultra-Faint Dwarf Galaxy Reticulum II
  3. Young Pulsars and the Galactic Center GeV Gamma-ray Excess
  4. Measurement of the Atmospheric νe Spectrum with IceCube
  5. A Combined Limit on the Neutrino Mass from Neutrinoless Double-Beta Decay and Constraints on Sterile Majorana Neutrinos
  6. Halo-Independent Direct Detection Analyses Without Mass Assumptions
  7. The behaviour of dark matter associated with 4 bright cluster galaxies in the 10kpc core of Abell 3827
  8. Improved Limits on Sterile Neutrino Dark Matter using Full-Sky Fermi-GBM Data
  9. AMS-02 antiprotons, at last! Secondary astrophysical component and immediate implications for Dark Matter
  10. On Detecting Millisecond Pulsars at the Galactic Center
  11. What could we learn from a sharply falling positron fraction?
  12. Comment on AMS02 results support the secondary origin of cosmic ray positrons

New AMS results this week!


12:30 pm, Friday, April 10th at PRB M2005 (Price Place)

Special talk!

Sam Stafford (OSU)
Analysis Interferometry of the Antarctic Impulse Transient Antenna (ANITA)

    Ultra-high energy (UHE) neutrinos may facilitate observation of sources in the
remotest parts of the universe.  A flux of UHE (E > 10^18eV) neutrinos is expected
from interaction of UHE cosmic rays with the cosmic microwave background.  
The Antarctic Impulse Transient Antenna (ANITA) campaign is a NASA Long-duration
balloon mission searching for coherent radio emission induced by ultra-high energy
neutrinos interacting in the Antarctic ice, as well as by UHE cosmic ray particle
cascades in the air.  The third ANITA flight began in December 2014 and lasted 
for 22 days.  I give a general description of the ANITA-III payload and flight, and 
present analysis methods to be used in identifying and localizing radio pulse events.








12:30 pm, Friday, March 13th at PRB M2005 (Price Place)

Dwarf papers!
  1. Beasts of the Southern Wild. Discovery of a large number of Ultra Faint satellites in the vicinity of the Magellanic Clouds
  2. Evidence for Gamma-ray Emission from the Newly Discovered Dwarf Galaxy Reticulum 2
  3. Eight New Milky Way Companions Discovered in First-Year Dark Energy Survey Data
  4. Search for Gamma-Ray Emission from DES Dwarf Spheroidal Galaxy Candidates with Fermi-LAT Data
  5. Searching for Dark Matter Annihilation from Milky Way Dwarf Spheroidal Galaxies with Six Years of Fermi-LAT Data






12:30 pm, Friday, February 13th at PRB M2005 (Price Place)
  1. Evidence for dark matter in the inner Milky Way
  2. Flavor Ratio of Astrophysical Neutrinos above 35 TeV in IceCube
  3. Searching for Dark Matter Annihilation to Monoenergetic Neutrinos with Liquid Scintillation Detectors
  4. CMB Constraints On The Thermal WIMP Annihilation Cross Section
  5. Constraints on decaying dark matter from the extragalactic gamma-ray background
  6. Constraints on an Annihilation Signal from a Core of Constant Dark Matter Density around the Milky Way Center with H.E.S.S
  7. A limit on the ultra-high-energy neutrino flux from lunar observations with the Parkes radio telescope
  8. Signals from dark atom formation in halos
  9. Spectral analysis of the high-energy IceCube neutrinos
  10. The Knee of the Cosmic Hydrogen and Helium Spectrum below 1 PeV Measured by ARGO-YBJ and a Cherenkov Telescope of LHAASO
  11. Effects of axions on Nucleosynthesis in massive stars
  12. Effect of first forbidden decays on the shape of neutrino spectra
  13. Which is the flavor of cosmic neutrinos seen by IceCube?




12:30 pm, Friday, January 16th at PRB M2005 (Price Place)