Year 2014-2015

Aug 13, 2015

• • Jennings and Wechsler 2015, http://arxiv.org/pdf/1508.01803v1.pdf, "Disentangling redshift-space distortions and nonlinear bias using the 2D power spectrum"

Aug 6, 2015

• • Sherkatghanad and Brandenberger 2015, http://arxiv.org/pdf/1508.00968.pdf, "The Effect of Primordial Non-Gaussianities on the Seeds of Super-Massive Black Holes"

July 30, 2015

• • Clampitt, Jain, Sanchez 2015, http://arxiv.org/pdf/1507.08031.pdf, "Clustering and Bias Measurements of SDSS Voids"

  • Balrog sneak peak, http://www.physics.ohio-state.edu/~suchyta.1/Balrog_stuff/balrog-paper.pdf

  • Madau and Haardt 2015, http://arxiv.org/pdf/1507.07678v1.pdf, "Cosmic Reionization After Planck: Could Quasars Do It All?"

July 23, 2015 

• • Pullen et al. 2015, http://arxiv.org/pdf/1507.05092.pdf, "Interloper bias in future large-scale structure surveys" 

  • Gruen et al. 2015, http://arxiv.org/pdf/1507.05090v1.pdf, "Weak Lensing by galaxy troughs in DES Science Verification Data"

July 16, 2015

• • Chaves-Montero et al. 2015, http://arxiv.org/pdf/1507.01948.pdf, "Testing subhalo abundance matching and assembly bias in the Eagle simulation"

  • Carroll and Tam 2010, http://arxiv.org/pdf/1007.1417v1.pdf, "Unitary evolution and cosmological fine tuning"

  • Schiffrin and Wald 2012, http://arxiv.org/pdf/1202.1818v1.pdf, " Measure and Probability in Cosmology"

July 10, 2015

• • Ma et al, 2015, http://arxiv.org/pdf/1504.02097v1.pdf, "The Origin and Evolution of the Galaxy-Mass Metallicity Relation"

  • Gubitosi et al, 2015, http://arxiv.org/pdf/1506.09143v1.pdf, "Inflation Evidence and Falsifiability"

Jun 25, 2015

• • Miyatake et al. 2015, http://arxiv.org/pdf/1506.06135.pdf, "Evidence of Halo Assembly bias In Massive Clusters"

  • Clampitt and Jain 2015, http://arxiv.org/pdf/1506.03536.pdf, "Lensing measurements of the Ellipticity of LRG Dark Matter Halos"

June 11, 2015

• • Rong et al. 2015 http://arxiv.org/pdf/1506.01800v1.pdf, "Radial alignment of elliptical galaxies by the tidal force of cluster galaxies"

  • Tejos et al. 2015, http://arxiv.org/pdf/1506.01031v1.pdf, "Towards the statistical detection of the warm-hot intergalactic medium in inter-cluster filaments of the cosmic web"

June 4, 2015

• • Guo et al. 2015, http://arxiv.org/pdf/1505.07861v1.pdf, "Redshift-space clustering of SDSS galaxies-luminosity dependence, halo occupation distribution, and velocity bias"

  • Hikage and Yamamoto 2015, http://arxiv.org/pdf/1506.01100.pdf, "Fingers of God effect of infalling satellite galaxies"

  • Green and Wald 2014, http://arxiv.org/pdf/1407.8084v2.pdf, "Is our universe described by a FRLW model?"

  • Buchert et al. 2015, http://arxiv.org/pdf/1505.07800v1.pdf, "Is there proof that backreaction of inhomogeneities is irrelevant in cosmology?

  • Tejos et al. 2015, http://arxiv.org/pdf/1506.01031v1.pdf, "Towards the statistical detection of the warm-hot intergalactic medium in inter-cluster filaments of the cosmic web"

  • Yu and Mandelbaum, 2015, http://arxiv.org/abs/1505.02781, "Mapping stellar content to dark matter halos using galaxy clustering and galaxy-galaxy lensing in the SDSS DR7"

May 28, 2015 

• • Zu and Mandelbaum 2015, http://arxiv.org/pdf/1505.02781.pdf, "Mapping stellar content to dark matter halos using galaxy clustering and galaxy-galaxy lensing in SDSS DR7"

  • Rsalit and Lusso 2015, http://arxiv.org/pdf/1505.07118.pdf, "A Hubble diagram for Qusars"

May 13, 2015, 

• • Pierre-Henri 2015, http://arxiv.org/pdf/1505.00034v1.pdf, "The Logotropic Dark Fluid as a unification of dark matter and dark energy" 

  • Zu and Mandelbaum, http://arxiv.org/pdf/1505.02781.pdf, "Mapping stellar content to dark matter halos using galaxy clustering and galaxy-galaxy lensing in SDSS DR7"

May 7, 2015, 

• • Osumi et al. 2015, http://arxiv.org/pdf/1505.00782.pdf, "Robust New Statistic for fitting the Baryon Acoustic Feature"

  • L'Huillier et al. 2015, http://arxiv.org/pdf/1505.00788.pdf, "The ecology of dark matter halos I: The rates and types of halo interactions"

April 30, 2015, 

• • Hoyle 2015, http://arxiv.org/pdf/1504.07255.pdf, "Measuring photometric redshifts using galaxy images and Deep Neural Networks"

  • Ben-Dayan and Takahashi 2015, http://arxiv.org/pdf/1504.07273.pdf, "Constraints on small-scale cosmological fluctuations from SNe lensing dispersion"

  • Lin et al. 2015, http://arxiv.org/pdf/1504.07632.pdf, "On detecting halo assembly bias with galaxy populations"

April 23, 2015,

• • Hearin et al. 2015, http://arxiv.org/pdf/1504.05578.pdf, "On the physical origin of galactic conformity" 

  • Sokolowska et al. 2015, http://arxiv.org/pdf/1504.04620v1.pdf, "Diffuse Coronae in cosmological simulations of Milky Ways-sized galaxies"

  • Graff et al. 2015, http://arxiv.org/pdf/1504.04766.pdf, "The Missing Link: Bayesian Detection and Measurement of Intermediate-Mass-Black-Hole Binaries"

  • Hirano et al. 2015, http://arxiv.org/pdf/1504.05186.pdf, "Early Structure Formation From Primordial Density Fluctuations With a Blue-Tilted Power Spectrum"

April 16, 2015, 

• Joachimi et al. 2015, http://arxiv.org/pdf/1504.02662.pdf, "Detection of spatial correlations of fundamental plane residuals, and cosmological implications"

• Blazek et al, 2015, http://arxiv.org/pdf/1504.02510v1.pdf, "Tidal alignment of galaxies"

April 9, 2015, 

• • Guest talk by Evan Scheider

    • Introducing CHOLLA: A New Massively-Parallel Hydrodynamics Code

  • In recent years, computer architectures have grown to incorporate a variety of accelerators that substantially increase the power of a CPU by providing access to thousands of parallel computational elements. Among these accelerators are graphics processor units, or GPUs - devices that were originally designed for on-screen pixel rendering but have since been adapted for general use by the scientific community. In this talk, I will give an overview of a new massively-parallel hydrodynamics code, CHOLLA, written to run natively on these devices. I will discuss advantages and limitations of the GPU programming model, and show some initial scientific results obtained with CHOLLA on the El Gato cluster at the UofA

• Talk by Ashely Ross

  • Early Dark Energy Survey Science Results.  

April 2, 2015, 

• • Follin et al. 2015 http://arxiv.org/pdf/1503.07863.pdf, "A First Detection of the Acoustic Oscillation Phase Expected From the Cosmic Neutrino Background"

  • Tellarini et al. 2015 http://arxiv.org/pdf/1504.00324.pdf, "Non-local bias in the halo bispectrum with primordial non-Gaussianity"

  • Kaiser and Peacock 2015, http://arxiv.org/pdf/1503.08506.pdf, "On the bias of the distance-redshift relation from gravitational lensing"

March 26, 2015, 

• • Desjacques et al. 2015 "http://arxiv.org/pdf/1503.05589.pdf", Detecting the cosmological recombination signal from space"

  • Eda et al. 2014, "http://arxiv.org/pdf/1503.05589.pdf", Gravitational waves as a probe of dark matter mini-spikes"

  • HIguchi et al. 2015, http://arxiv.org/pdf/1503.06373.pdf, "Detection of a filament connected to CL0016 with weak gravitational lensing"

March 19, 2015 

• • Yamamoto et al. 2015, http://arxiv.org/pdf/1503.03973v1.pdf, "Testing subhalo abundance matching from redshift-space clustering"

  • Pace et al. 2015, http://arxiv.org/pdf/1503.04324v1.pdf, "The importance of the cosmic web and halo substructure for power spectra"

March 12, 2015

• • Shafer 2015, http://arxiv.org/pdf/1502.05416.pdf, "Robust model comparison disfavors power law cosmology"

  • Yao-Yaun et al. 2015, http://arxiv.org/pdf/1503.02637.pdf, "The Dependence of Subhalo Abundance on Halo Concentration"

March 5, 2015 

• • Shafer 2015, http://arxiv.org/pdf/1502.05416.pdf, "Robust model comparison disfavors power law cosmology"

  • Pereira et al 2015, http://arxiv.org/pdf/1503.01127.pdf, "Weak-lensing B-modes as a probe of the isotropy of the universe"

  • Leclercq et al 2015, http://arxiv.org/pdf/1503.00730.pdf, "Cosmic web-type classification using decision theory"

Feb 26, 2015

• • Pacucci et al. 2015, http://arxiv.org/abs/1502.04125, "Gravitational Waves from Direct Collapse Black Holes Formation"

  • Contreras et al 2015, http://arxiv.org/pdf/1502.06614.pdf, "The galaxy-dark matter halo connection: which galaxy properties are correlated with the host halo mass?"

Feb 19, 2015

• Tempel et al. 2015, http://arxiv.org/pdf/1502.02046.pdf, "The alignment of satellite galaxies and cosmic filaments: observations and simulations"

  • Katz et al. 2014, http://www.nature.com/nphoton/journal/v8/n10/pdf/nphoton.2014.189.pdf, "Non-invasive single-shot imaging through scattering layers and around corners via speckle correlations"

Feb 12, 2015

• Raccanelli et al. 2015, http://arxiv.org/pdf/1502.03107.pdf, "Detecting the integrated Sachs-Wolfe effect with high redshift 21-cm surveys"

• Leclercq et al 2015, http://arxiv.org/pdf/1502.02690.pdf, "Bayesian analysis of the dynamic cosmic web in the SDSS galaxy survey"

Feb 5, 2015 

• Shi et al. 2015, http://arxiv.org/pdf/1501.07764.pdf, "Flow Patterns around Dark Matter Halos: the Link between Halo Dynamical Properties and Large Scale Tidal Field"

Jan 29, 2015 

• • van Daalen and Schaye, http://arxiv.org/pdf/1501.05950.pdf, "The contributions of matter inside and outside of halos to the matter power spectrum"

  • Goerdt and Ceverino, http://arxiv.org/pdf/1501.06913.pdf, "Inflow velocities of cold flows streaming into massive galaxies at high redshifts"

  • Hayasaki et al al. 2015, http://arxiv.org/pdf/1501.05207.pdf, "Circularization of Tidally Disrupted Stars around Spinning Supermassive Black Holes" 

Jan 22, 2015 

• • Hearin 2015, http://arxiv.org/pdf/1501.02798.pdf, "Assembly Bias & Redshift-Space Distortions: Impact on cluster dynamics and tests of general relativity"

  • Maio et al. 2015, http://arxiv.org/pdf/1501.04104.pdf, "Bulk Flows and End of the Dark Ages with SKA"

  • Errani, http://arxiv.org/pdf/1501.04968.pdf, "Constraining the distribution of dark matter in dwarf spherodial galaxies with stellar tidal streams"

Jan 15, 2015 

• • Xie and Gao 2015, http://arxiv.org/pdf/1501.03171.pdf, "Assembly history of dark matter subhalo in LambdaCDM"

  • Hojjati et al. 2014, http://arxiv.org/pdf/1412.6051, "Dissecting the thermal Sunyaev-Zeldovich-gravitational lensing cross-correlation with hydrodynamical simulations"

Dec 18, 2014

•     Slepian and Eisenstein 2014, http://arxiv.org/pdf/1411.4052v1.pdf, "On the signature of the baryon-dark matter relative velocity in the two and three-point galaxy correlation functions"

Dec 11, 2014

    Guest talk by Alice Pisani. 

        Precision Cosmology with Cosmic Voids: 

            Modern surveys allow us to access to high quality measurements, by sampling the galaxy distribution in detail also in the emptier regions, voids. Cosmic voids present themselves as a new tool to constrain cosmology. While the treatment of systematics is simpler in these empty regions, with the aim of achieving the level of precision cosmology a careful modeling of such effects is necessary.  In particular, peculiar velocities affect the way we observe cosmic voids, and thus their effect needs to be understood. Using mock catalogues, I analyze the effect of  peculiar velocities on void properties.  In this talk I thus present the results of the analysis of the                 systematic effects affecting voids and discuss it in the framework of current and future surveys. Additionally, I present a preliminary forecast for void abundances with the   future Euclid and Wfirst missions and obtain, using the Fisher matrix formalism, a prediction for the constraints that void abundances will set on cosmological parameters.

Dec 4, 2014 

• • Simard et al. 2014, http://arxiv.org/pdf/1410.0691.pdf, "Prospects for Delensing the Cosmic Microwave Background for Studying Inflation" 

Nov 20, 2014

• • Carretero et al. 2014, http://arxiv.org/pdf/1411.3286.pdf, "An algorithm to build mock galaxy catalogues using MICE simulations" 

Nov 13, 2014

• • Alipour et al. 2014, http://arxiv.org/pdf/1410.6484v1.pdf, "The Effects of Rayleigh Scatter on the CMB and Cosmic Structure"

Nov 6, 2014

• • Alsing et al. 2014, http://arxiv.org/pdf/1410.7839v1.pdf, "Weak Lensing with Sizes, Magnitudes, and Shapes"

  • Informal update on BOSS by Ashely Ross and Cameron McBride.  

Oct 30, 2014

• Chevallard et al. 2014, http://arxiv.org/pdf/1410.7768.pdf, "Effect of primordial non-Gaussianities on the far UV-luminosity function of high-redshift galaxies: implications for cosmic reionization"

  • Ngolè Mboula et al., http://arxiv.org/pdf/1410.7679.pdf, "Super-resolution method using sparse regularization for point-spread function recovery"

  • Thompson et al., http://arxiv.org/abs/1410.7438, "The rise and fall of a challenger: the Bullet Cluster in Lambda Cold Dark Matter simulations"

Oct 23 2014, 

    Talk by Andreu Font-Ribera (Lawrence Berkeley National Laboratory): "Studying the Expansion of the Universe with BOSS quasars"

            After six years of observations, the Baryon Oscillation Spectroscopic Survey (BOSS) ended last summer, and will soon make its data public

            (SDSS Data Release 12). During these years, it has used the SDSS telescope to obtain spectra of 1.5 million galaxies to get very

            accurate measurements of the Baryon Acoustic Oscillations (BAO) scale at redshift z ~0.5. At the same time, BOSS observed over 184 000 high

            redshift quasars (z>2.15) with the goal of detecting the BAO feature in the clustering of the intergalactic medium, using a technique known

            as the Lyman alpha forest (LyaF).

            In this talk I will overview several results from the LyaF working group in BOSS, including the measurement of BAO at z=2.4 both from the

            auto-correlation of the LyaF (Delubac et al. 2014), and from its cross-correlation with quasars (Font-Ribera et al. 2014). From the

            combination of these studies we are able to measure the expansion rate of the Universe 11 billion years ago with a 2% uncertainty.

Oct 16, 2014

• Man et al. 2014 http://arxiv.org/pdf/1410.3479v1.pdf, "Resolving the discrepancy of galaxy merger fraction measurements at z~0-3"

• Tenneti et al. 2014 http://arxiv.org/abs/1409.7297, "Intrinsic alignments of galaxies in Massiveblack -II simulation: analysis of two point statistics"

Oct 9, 2014 

• • Wagner et al, http://arxiv.org/pdf/1409.6294.pdf, "Separate Universe Simulations"

Oct 2, 2014 

• • Ocvirk et al, http://arxiv.org/pdf/1409.8285v1.pdf, "The reionization of galactic satellite populations"

  • Thepsuriya and Lewis, http://arxiv.org/pdf/1409.5066v1.pdf, "Accuracy of cosmological parameters using the baryon acoustic scale"

Sept 25, 2014 

• • Venumadhav and Hirata, http://arxiv.org/pdf/1409.1240v1.pdf, "Stability of small scale baryon perturbations during cosmological recombination" 

  • Maio and Viel, http://xxx.tau.ac.il/pdf/1409.6718v1.pdf, "The First Billion Years of a Warm Dark Matter Universe"

Sept 18, 2014

• • Venumadhav and Hirata, http://arxiv.org/pdf/1409.1240v1.pdf, "Stability of small scale baryon perturbations during cosmological recombination" 

Sept 11, 2014

• Kelson, http://arxiv.org/pdf/1406.5191v1.pdf, "Decoding the Star-forming Mian Sequence or: How I learned to stop worrying and love the central limit theorem."

• Mueller et al, http://arxiv.org/pdf/1408.6248.pdf, "Constraints on gravity and dark energy from the pairwise kinematic Sunyaev-Zeldovich effect"

Sept 4, 2014 

• Mueller et al, http://arxiv.org/pdf/1408.6248.pdf, "Constraints on gravity and dark energy from the pairwise kinematic Sunyaev-Zeldovich effect"

  • Adam et al., http://arxiv.org/pdf/1409.1137.pdf, "High resolution SZ observations at the IRAM 30-m telescope with NIKA"

  • Bleem et al., http://arxiv.org/pdf/1409.0850.pdf, "Galaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the 2500-square-degree SPT-SZ survey"

  • Kitching et al, http://arxiv.org/pdf/1408.7052.pdf, "3D Weak Gravitational Lensing of the CMB and Galaxies"

August 28, 2014

• • Singh et al., http://arxiv.org/pdf/1408.4896.pdf, "CMB distortion form circumgalactic gas" 

August 21, 2014

• Chongshitnam, http://arxiv.org/pdf/1408.4340v1.pdf, "The Lyman alpha Forest as a Tool for Disentangling non-Gaussianities"

• Yu, Zhang, & Pen, http://adsabs.harvard.edu/abs/2014PhRvL.113d1303Y,  "Method for Direct Measurement of Cosmic Acceleration by 21-cm Absorption Systems"