Year 2015-2016

August, 25 2016

• • Martins et. al. 2016, http://arxiv.org/pdf/1606.07261v2.pdf, "Real-time cosmography with redshift derivatives"

August, 25 2016

• • Hoang et. al. 2016, https://arxiv.org/pdf/1608.05284v1.pdf, "The Interaction of Relativistic Spacecrafts with the Interstellar Medium"

  • Feng et. al. 2016, http://arxiv.org/pdf/1608.04351.pdf, "Planck Lensing and Cosmic Infrared Background Cross-Correlation with Fermi-LAT"

  • Mandic et al., 2016, http://arxiv.org/pdf/1608.06699.pdf, "Stochastic Gravitational-Wave Background due to Primordial Binary Black Hole Mergers"

July, 28 2016

    Special talk: 

    Benjamín Camacho Quevedo

    Universidad Autónoma de Sinaloa (UAS)

    "Systematics effects on the eBOSS sample of Luminous Red Galaxies (LRGs)"

    Abstract:

    I've been testing how the density of galaxies in eBOSS changes due to systematics in the observations and how those affect the correlation function. In this talk, I will summarize the results of a month of work in CCAPP. I have been working with a sample of LRG's from eBOSS. First, I tested how the density of galaxies changes as function of the most important systematics observations and then, I investigated if the corrections applied due to each systematic make a great change in the correlation function.

• • Slepian et. al. 2016, http://arxiv.org/pdf/1607.06098.pdf, "Constraining the Baryon-Dark Matter Relative Velocity with the Large-Scale 3-Point Correlation Function of the SDSS BOSS DR12 CMASS Galaxies"

  • Slepian et. al. 2016, http://arxiv.org/pdf/1607.06097.pdf, "Detection of Baryon Acoustic Oscillation Features in the Large-Scale 3-Point Correlation Function of SDSS BOSS DR12 CMASS Galaxies"

  • Slepian et. al. 2014, https://arxiv.org/abs/1411.4052

  • Slepian et. al. 2016, https://arxiv.org/abs/1607.03109

July, 14 2016

• • Loeb et. al. 2016, http://arxiv.org/pdf/1606.08448.pdf, "Relative Likelihood for Life as a Function of Cosmic Time"

  • LIGO & VIRGO 2016, https://arxiv.org/pdf/1606.04856.pdf, "Binary Black Hole Mergers in the first Advanced LIGO Observing Run"

June, 30 2016

• • Cholis et. al. 2016, http://arxiv.org/pdf/1606.07437.pdf, "Orbital eccentricities in primordial black holes binaries"

  • Hatfield et. al. 2016, http://arxiv.org/pdf/1606.08989v1.pdf, "Environmental Quenching and Galactic Conformity in the Galaxy Cross-Correlation Signal"

  • Guiriec et. al. 2016, http://arxiv.org/pdf/1606.07193.pdf, "A Unified Model for GRB Prompt Emission from Optical to Gamma-Rays; a New Type of Standard Candle"

  • Hildebrandt et. al. 2016, http://arxiv.org/pdf/1606.05338v1.pdf, "KiDS-450: Cosmological parameter constraints from tomographic weak gravitational lensing"

June, 23 2016

• • Li et. al. 2016, https://arxiv.org/pdf/1606.06290v1.pdf, "Echo Technique to Distinguish Flavors of Astrophysical Neutrinos"

  • Magain et. al. 2016, http://arxiv.org/pdf/1606.06169.pdf, "Variable time flow as an alternative to dark energy"

  • Huang et. al. 2016, http://arxiv.org/pdf/1606.05965.pdf, "How the Dark Energy Can Reconcile Planck with Local Determination of the Hubble Constant"

June, 9 2016

• • Power et. al. 2016, http://arxiv.org/pdf/1606.02038.pdf, "Spurious Small-Scale Structure & Discreteness-Driven Relaxation in Cosmological Simulations"

  • Peel et. al. 2014, http://arxiv.org/pdf/1408.4390v2.pdf, "Effect of inhomogeneities on high precision measurements of cosmological distances"

June, 2 2016

• • Saadeh et. al. 2016, http://arxiv.org/pdf/1605.07178.pdf, "How isotropic is the Universe?"

• Greig et. al. 2016, http://arxiv.org/pdf/1605.05374v1.pdf, "The Global History of Reionisation"

  • Comaschi et. al. 2016, http://arxiv.org/pdf/1605.06124v1.pdf, "Empowering line intensity mapping to study early galaxies"

  • Oklopčić et. al. 2016, http://arxiv.org/pdf/1605.07185.pdf, "Raman Scattering by Molecular Hydrogen and Nitrogen in Exoplanetary Atmospheres"

May, 19 2016

• Lin et. al. 2016, http://arxiv.org/pdf/1504.07632v2.pdf, "On Detecting Halo Assembly Bias With Galaxy Populations"

• Planck Collaboration 2016, http://arxiv.org/pdf/1605.03507.pdf, "Planck Constraints on Reionization History"

May, 12 2016

• Tully et. al. 2016, http://arxiv.org/pdf/1605.01765.pdf, "COSMIC FLOWS 3"

• Garrison et. al. 2016, http://arxiv.org/pdf/1605.02333v1.pdf, "Improving Initial Conditions for Cosmological N-Body Simulations"

May, 5 2016

• • Lacki 2015, http://arxiv.org/pdf/1503.01509v1.pdf, "SETI at Planck Energy: When Particle Physicists Become Cosmic Engineers"

  • Zhao et. al. 2016, http://arxiv.org/pdf/1604.05484.pdf, "Preferred Axis in Cosmology"

  • Petri et al. 2016, http://arxiv.org/pdf/1605.01100.pdf, "Cosmology with photometric weak lensing surveys: constraints with redshift tomography of convergence peaks and moments"

April, 28 2016

• • Ahn 2016, http://arxiv.org/pdf/1603.09356.pdf, "HOW DENSITY ENVIRONMENT CHANGES THE INFLUENCE OF THE DARK MATTER-BARYON STREAMING VELOCITY ON THE COSMOLOGICAL STRUCTURE FORMATION"

  • Brouwer et al. 2016, http://arxiv.org/pdf/1604.07233v1.pdf, "Dependence of GAMA galaxy halo masses on the cosmic web environment from 100 square degrees of KiDS weak lensing data"

  • Baldauf et al. 2016, http://arxiv.org/pdf/1507.02256.pdf, "The Effective Field Theory of Large Scale Structure at Two Loops: the apparent scale dependence of the speed of sound"

  • Dodelson et al. 2016, http://arxiv.org/pdf/1604.07821.pdf, "Comic Visions Dark Energy: Technology"

April, 21 2016

• • Riess et al. 2016, http://arxiv.org/pdf/1604.01424.pdf, "A 2.4% Determination of the Local Value of the Hubble Constant"

  • Braden et al. 2016, http://arxiv.org/pdf/1604.04001.pdf, "Constraining cosmological ultra-large scale structure using numerical relativity"

  • Shajib et al. 2016, http://arxiv.org/pdf/1604.03939.pdf, "Measurement of the Integrated Sachs-Wolfe Effect Using the ALLWISE Data Release"

  • Fasiello and Vlah 2016, http://arxiv.org/pdf/1604.04612.pdf, "Non-linear Fields in Generalized Cosmologies"

  • Murphy et al. 2016, http://arxiv.org/pdf/1212.5603v1.pdf, "Super-Nyquist asteroseismology with the Kepler Space Telescope"

  • Ahn 2016, http://arxiv.org/pdf/1603.09356.pdf, "HOW DENSITY ENVIRONMENT CHANGES THE INFLUENCE OF THE DARK MATTER-BARYON STREAMING VELOCITY ON THE COSMOLOGICAL STRUCTURE FORMATION"

April, 14 2016

    Special talk: 

    Grigor Aslanyan

    U.C. Berkely 

    "Constraining the primordial power spectrum from large to very small scales"

    In this talk I will discuss the constraints on the primordial power spectrum (PPS) beyond the simple power-law model. We use CMB and large scale structure (LSS) datasets to look for         features in the power spectrum using a knot-spline model and Bayesian model selection. I will also discuss the implications of a relaxed prior for PPS for other cosmological parameter        constraints, particularly neutrino constraints. Finally, I will include limits on the abundance of  ultracompact minihalos from dark matter annihilation and pulsar timing measurements to        constrain the PPS and the inflationary potential at very small scales - orders of magnitude smaller than what is accessible from CMB and LSS surveys.

Mar, 31 2016

• • Tellarini et al. 2016, http://arxiv.org/pdf/1603.06814.pdf, "Galaxy Bispectrum, Primordial Non-Gaussianity and Redshift Space Distortions"

  • McEwen et al. 2016, http://arxiv.org/pdf/1603.04826v1.pdf, "FAST-PT, A novel algorithm to calculate convolution integrals in cosmological perturbation theory"

Mar, 24 2016

• • Special Seminar, presented by Kai Staats: "LIGO, A Passion for Understanding", and round-table discussion.

Mar, 10 2016

• • Pozzetti et al. 2016, http://arxiv.org/pdf/1603.01453.pdf, "Modelling the number density of H Alpha emitters for future spectroscopic near-IR space missions"

  • Oguri 2016, http://arxiv.org/pdf/1603.02356.pdf, "Measuring the distance-redshift relation with the cross-correlation of gravitational wave standard sirens and galaxies"

  • Hong et al. 2016, http://arxiv.org/pdf/1603.02285.pdf, "Discriminating topology in galaxy distributions using network analysis"

Mar, 3 2016

• • Sesana 2016, http://arxiv.org/pdf/1602.06951v1.pdf, "The promise of multi-band gravitational wave astronomy"

  • Sorini et al. 2016, http://arxiv.org/pdf/1602.08099v1.pdf, "Modeling the Lyman-alpha Forest in Collisionless Simulations"

  • Feng et al. 2016, http://arxiv.org/pdf/1603.00476.pdf, "FastPM: a new scheme for fast simulations of dark matter and halos"

  • Dijkstra et al. 2016, http://arxiv.org/pdf/1602.07695v1.pdf, "Lyman Alpha Signatures from Direct Collapse Black Holes"

  • Fialkov et al. 2016, http://arxiv.org/pdf/1602.08130v1.pdf,"Constraining the CMB Optical Depth Through the Dispersion Measure of Cosmological Radio Transients"

Feb, 25 2016

• • Loeb 2016, http://arxiv.org/pdf/1602.04735v2.pdf, "Electromagnetic Counterparts to Black Hole Mergers Detected by LIGO"

  • Dalal et. al. 2013, http://arxiv.org/pdf/0803.3453v1.pdf, "Halo Assembly Bias in Hierarchical Structure Formation."

Feb, 18 2016

• • Shalizi 2009, http://arxiv.org/pdf/0901.1342v5.pdf, "Dynamics of Bayesian updating with dependent data and misspecified models."

• Abbott et. al. 2016, http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.116.061102, "Observation of Gravitational Waves from a Binary Black Hole Merger."

Feb, 4 2016

• • Briol et al. 2016, http://arxiv.org/pdf/1512.00933v1.pdf, "Probabilistic Integration"

  • Lousto et al. 2016, http://arxiv.org/pdf/1601.05086v1.pdf, "Unstable flip-flopping spinning binary black holes"

  • Kaufman et al. 2016, http://arxiv.org/pdf/1602.01153.pdf, "Using the Crab Nebula as a high precision calibrator for Cosmic Microwave Background polarimeters"

Jan, 28 2016 

• • Zhang 2016, http://arxiv.org/pdf/1601.04558v1.pdf, "Testing Einstein's Equivalence Principle with Cosmological Fast Radio Bursts behind Clusters of Galaxies"

  • Dijkstra et al. 2016, http://arxiv.org/pdf/1601.04712v1.pdf, "3-cm Fine Structure Masers: A Unique Signature of Supermassive Black Hole Formation via Direct Collapse in the Early Universe"

  • More et al. 2016, http://arxiv.org/pdf/1601.06063v1.pdf, "Detection of the Splashback Radius and Halo Assembly bias of Massive Galaxy Clusters"

Jan, 21 2016 

• • Tanoglidis et al. 2016, http://arxiv.org/pdf/1601.03740.pdf, "Turnaround overdensity as a cosmological observable: the case for a local measurement of Lambda"

  • Mashian et al. 2016, http://arxiv.org/pdf/1601.02618v1.pdf, "Spectral Distortion of the CMB by the Cumulative CO Emission from Galaxies throughout Cosmic History"

Jan, 14 2016

    Guest talk by Niall MacCrann, University of Manchester. 

    Cosmology from Cosmic Shear with DES Science Verification Data:

    I present the first cosmology results from the Dark Energy Survey (DES), using cosmic shear. Cosmic shear exploits weak gravitational lensing - the tiny distortions of light from distant sources by the gravitational effect of intervening matter. As well as presenting the main cosmological constraints, I'll go over the basics of weak lensing and cosmic shear, including an overview of potential systematic effects. This will hopefully give you an idea of the inside of the sausage factory! I'll also discuss how we can improve our analysis to account for the decreasing statistical errors associated with massive upcoming weak lensing datasets, and give an update on the current state of the DES. 

Dec, 17 2015 

• • Sharma et al. 2015, http://arxiv.org/pdf/1512.04537.pdf, "The brighter galaxies reionised the Universe"

  • Way 2015, http://arxiv.org/pdf/1108.5124v1.pdf, "Challenges for LSST scale data sets"

  • Rosado et al. 2015, http://arxiv.org/pdf/1512.04950.pdf, "The most distant observable massive objects"

Dec, 3 2015 

• • Pullen et al. 2015, http://arxiv.org/abs/1511.04457 , "Constraining gravity at the largest scales through CMB lensing and galaxy velocities."

  • Way 2015, http://arxiv.org/pdf/1108.5124v1.pdf, "Challenges for LSST scale data sets"

  • Eckert et al 2015 http://arxiv.org/abs/1512.00454, "Warm-hot baryons comprise 5-10 per cent of filaments in cosmic web."

Nov 19, 2015

• • Pontzen et al. 2015, http://arxiv.org/pdf/1511.04090v1.pdf, "Inverted initial conditions: exploring the growth of cosmic structure and voids"

  • Little et al, 1991, http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1991MNRAS.253..295L&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf, "Primordial Fluctuations and Non-Linear Structure"

  • Pullen et al. 2015, http://arxiv.org/abs/1511.04457 , "Constraining gravity at the largest scales through CMB lensing and galaxy velocities."

Nov 12, 2015

        Special time: 11.30

        Guest talk by Francisco Villaescusa-Navarro

        Trieste, Italy 

        Title: Massive neutrino signatures on the large-scale structure of the Universe

        Abstract: Neutrinos are described as fundamental particles by the standard model of particle physics. The fact that neutrinos are massive, as demonstrated by neutrino                oscillations experiments, point towards physics beyond the standard model. One of the most important questions in modern physics is: what are the neutrino masses? Current         tightest constrain on the sum of the neutrino masses arise from cosmological observables. In order to extract the maximum information from current and future surveys, as            well as to avoid introducing biases in the values of the cosmological parameters, it is of primordial importance to understand, both at the linear and at the fully non-linear                order, the impact that massive neutrinos induce on the distribution of matter, halos and galaxies. In this talk I will present some of the effects neutrinos induce on the Universe         large-scale structure, among then the clustering of matter, the clustering of dark matter halos, the abundance of halos, the abundance of voids, their impact on the BAO peak         and their effects of the spatial distribution of neutral hydrogen in the post-reionization era.

Nov 5, 2015

        Two guest talks:

        Shun Saito

        Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) 

        The University of Tokyo Institutes for Advanced Study (UTIAS

        The University of Tokyo

        Title: 

        Evolution of Massive Galaxies at z~0.5 in the BOSS survey 

        Abstract: 

        The dark matter, which accounts ~80% of gravitational matter, is thought to play an important role in the cosmic structure formation as well as the galaxy formation and evolution. The                                relation between galaxies and their host dark matter halos has been gained a lot of attentions in this decade. For instance, the stellar-to-halo-mass relation (SHMR) at wide range of mass and                 redshift has been used to constrain the model of galaxy formation and evolution. However, the massive end (log10(M*/Msun)>11.0) of SHMR is not yet well measured, simply because the number         density of massive objects is very small and hence the large statistical sample is required. 

         Now we have in hand the CMASS galaxy sample in the Baryon Oscillation Spectroscopic Survey (BOSS) in Sloan Digital Sky Survey III (2009-2014) which amounts to almost one                                     million galaxies in a huge cosmological volume, allowing us to measure cosmological probes such as the Baryon Acoustic Oscillation scale and the Redshift-Space Distortion from the large-scale             galaxy clustering [O(10-100Mpc)]. Meanwhile, the CMASS sample also provides a suitable galaxy sample for galaxy evolution perspective from the small-scale galaxy clustering [O(0.1-1Mpc)]. 

        In this talk, we present our efforts to model the galaxy-halo connection for the BOSS CMASS sample. In particular, we first reexamine the complicated selection criteria using the two                                 magnitude deeper catalog in the Stripe 82 region, where we show that the CMASS sample is incomplete in terms of stellar mass in a redshift-dependent way. Then we present our method                     based on the subhalo abundance matching by carefully taking care of the selection effects. Our results suggest warning the standard approach based on the Halo Occupation Distribution, and the         halo assembly bias could be a key to fully understand the CMASS galaxy-halo connection. 

        Elena Massara (a guest of Paul Sutter)

         SISSA (Trieste, Italy)

        Modelling the Large Scale Structure w and w/o massive neutrinos

        Neutrino oscillation experiments have shown that neutrinos are

        massive, therefore they affect the evolution of structures in the

        Universe at the linear and non-linear levels. I will discuss how to

        model the non-linear matter power spectrum in a massive neutrino

        cosmology, using an extended version of the halo model. I will show

        the comparison between these theoretical predictions and the results

        from N-body simulations. Cosmic voids are expected to be good

        environments to characterise the neutrino-induced effect on the matter

        distribution. I will present the results of a numerical study of void

        properties that aims to identify these effects. Finally, I will

        discuss a model for describing the shape and evolution of void density

        profiles.

Oct 29, 2015

• • Jee et al., 2015, http://arxiv.org/abs/1510.03962 "Cosmic Shear Results from the Deep Lens Survey II: Full Cosmological Constraints from Tomography

  • Ma & Scott, 2015, http://arxiv.org/abs/1510.08309, "How much cosmological information can be measured?"

Oct 22, 2015

• • Gao et al, 2005, http://arxiv.org/pdf/astro-ph/0506510v2.pdf, "The age dependence of halo clustering"

  • Jee et al. 2015, http://arxiv.org/pdf/1510.03486v1.pdf, "MC^2: Mapping the Dark Matter Distribution of the "Toothbrush" Cluster RX J0603.3+4214 with Hubble Space Telescope and Subaru Weak-lensing"

Oct 15, 2015

    Guest talk by Ron Sega

        Dr. Ron Sega, former NASA astronaut and professor of systems engineering and

        Vice President for Energy and the Environment at the Colorado State

        University will join us to share his space and life experiences, and

        take questions about being an astronaut, technical aspects of

        missions, and his work as the NASA Director of Operations at Star

        City, Russia.

Oct 8, 2015

    Guest talk by Stefano Anselmi of Case Western Reserve

        "TITLE: "Evading non-linearities: Baryon Acoustic Oscillations at the linear point”

        ABSTRACT

         Cosmology has made fundamental progress thanks to the role of standard rulers. The acoustic peak in the Large Scale Structure clustering correlation function is one of             them. However, in the era of precision cosmology, its power has been highly challenged by how late time non-linearities distort the correlation function. Fortunately this is          not the end of the story! I will explain how we can evade non-linearities identifying a scale in the correlation function, called the “linear point”, that is an excellent                     cosmological standard ruler: its position is insensitive to non-linear gravity, redshift space distortions, and scale-dependent bias at the 0.5% level; it is geometrical, i.e.             independent of the power spectrum of the primordial density fluctuation parameters. Moreover, the linear point increases its appeal as it is easily identified irrespectively          of how non-linearities distort the correlation function. Equally relevant, the correlation function amplitude at the linear point is similarly insensitive to non-linear                          corrections to within a few percent. Therefore, exploiting the particular Baryon features in the correlation function, we propose three new estimators for                                   growth measurements. We perform a preliminary test in current data finding encouraging results and motivating more careful future investigations.

         - arXiv reference: http://arxiv.org/abs/1508.01170 “ 

Oct 1, 2015

• • Saito et al. 2015, http://arxiv.org/pdf/1509.00482v1.pdf, "CONNECTING MASSIVE GALAXIES TO DARK MATTER HALOS IN BOSS. I: IS GALAXY COLOR A STOCHASTIC PROCESS IN HIGH MASS HALOS?"

  • Mandelbaum et al. 2015, http://arxiv.org/pdf/1509.06762v1.pdf, "Strong bimodality in the host halo mass of central galaxies from galaxy-galaxy lensing"

  • Zu and Mandelbaum 2015, http://arxiv.org/pdf/1509.06758v1.pdf, "Mapping stellar content to dark matter halos. II. Halo mass is the main driver of galaxy quenching"

Sept 24, 2015

• • Saito et al. 2015, http://arxiv.org/pdf/1509.00482v1.pdf, "CONNECTING MASSIVE GALAXIES TO DARK MATTER HALOS IN BOSS. I: IS GALAXY COLOR A STOCHASTIC PROCESS IN HIGH MASS HALOS?"

  • Moore et al. 2015, http://arxiv.org/pdf/1509.04066v1.pdf , "Improving gravitational-wave parameter estimation using Gaussian process regression"

Sept. 17, 2015 

• • Vlah et al. 2015, http://arxiv.org/pdf/1509.02120.pdf, "Perturbation theory, effective field theory, and oscillations in the power spectrum"

  • Huterer et al. 2015, http://arxiv.org/pdf/1509.04708v1.pdf, "No evidence for bulk velocity from type Ia supernovae"

Sept. 10, 2015

• Han et al. 2015, http://arxiv.org/pdf/1509.02175v1.pdf, "A unified model for the spatial and mass distribution of subhaloes"

  • Efstathiou  2014, http://arxiv.org/pdf/1311.3461v2.pdf, "H_0 revisted"

  • Pearson and Samushia 2015, http://arxiv.org/abs/1509.00064, "Estimating the power spectrum covariance matrix with fewer mock samples"

Sept.3, 2015 

• • Gurvich and Mandelbaum 2015, http://arxiv.org/pdf/1509.00020.pdf, "The impact of correlated noise on galaxy shape estimation for weak lensing"

  • Cautun et al. 2015, http://arxiv.org/pdf/1509.00010v1.pdf, "The view from the boundary: a new void stacking method"

Aug 27, 2015 

• • Fesen and Brown 2015, http://arxiv.org/pdf/1508.06527.pdf, "A Method for Establishing a Station-Keeping, Stratospheric Platform for Astronomical Research"

  • Bray et al. 2015, http://arxiv.org/pdf/1508.05393v1.pdf, "Modeling Galactic Conformity with the Color-Halo Age Relation in the Illustris Simulation"

  • Baumann et al. 2015, http://arxiv.org/pdf/1508.06342.pdf, "Phases of New Physics in the CMB"

  • Seo and Hirata, http://arxiv.org/pdf/1508.06503.pdf, "The foreground wedge and 21 cm BAO surveys"

Aug 20, 2015

• • Cohen et al. 2015, http://arxiv.org/pdf/1508.04138v1.pdf, "21-cm BAO signature of enriched low-mass galaxies"