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Feedback and Recycled Wind Accretion: Assembling the z=0 Galaxy Mass Function
Benjamin D. Oppenheimer, Romeel Davé, Dušan Kereš +4
We analyse cosmological hydrodynamic simulations that include observationally-constrained prescriptions for galactic outflows. If these simulated winds accurately represent winds i…
Pressure Support vs. Thermal Broadening in the Lyman-alpha Forest I: Effects of the Equation of State on Longitudinal Structure
Molly S. Peeples, David H. Weinberg, Romeel Davé +2
In the low density intergalactic medium (IGM) that gives rise to the Lyman-alpha forest, gas temperature and density are tightly correlated. The velocity scale of thermal broadenin…
Pressure Support vs. Thermal Broadening in the Lyman-alpha Forest II: Effects of the Equation of State on Transverse Structure
Molly S. Peeples, David H. Weinberg, Romeel Davé +2
We examine the impact of gas pressure on the transverse coherence of high-redshift (2 <= z <= 4) Lyman-alpha forest absorption along neighboring lines of sight that probe the gas J…
An Analysis of DES Cluster Simulations through the IMCAT and Shapelets Weak Lensing Pipelines
M. S. S. Gill, J. C. Young, J. P. Draskovic +8
We have run two completely independent weak lensing analysis pipelines on a set of realistic simulated images of a massive galaxy cluster with a singular isothermal sphere profile…
The Nature of Sub-millimetre Galaxies in Cosmological Hydrodynamic Simulations
Romeel Davé, Kristian Finlator, Benjamin D. Oppenheimer +4
We study the nature of rapidly star-forming galaxies at z=2 in cosmological hydrodynamic simulations, and compare their properties to observations of sub-millimetre galaxies (SMGs)…
Binary Quasars at High Redshift II: Sub-Mpc Clustering at z ~ 3-4
Yue Shen, Joseph F. Hennawi, Francesco Shankar +8
We present measurements of the small-scale (0.1<~ r <~ 1 Mpc/h) quasar two-point correlation function at z>2.9, for a flux-limited (i<21) sample of 15 binary quasars compiled by He…
A Search for Oxygen in the Low-Density Lyman-alpha Forest Using the Sloan Digital Sky Survey
Matthew M. Pieri, Stephan Frank, Smita Mathur +3
We use 2167 Sloan Digital Sky Survey (SDSS) quasar spectra to search for low-density oxygen in the Intergalactic Medium (IGM). Oxygen absorption is detected on a pixel-by-pixel bas…
Cosmological Constraints from the Clustering of the Sloan Digital Sky Survey DR7 Luminous Red Galaxies
Beth A. Reid, Will J. Percival, Daniel J. Eisenstein +25
We present the power spectrum of the reconstructed halo density field derived from a sample of Luminous Red Galaxies (LRGs) from the Sloan Digital Sky Survey Seventh Data Release (…
Lyman-alpha Emission From Cosmic Structure I: Fluorescence
Juna A. Kollmeier, Zheng Zheng, Romeel Davé +4
We present predictions for the fluorescent Lyman-alpha emission signature arising from photoionized, optically thick structures in Smoothed Particle Hydrodynamic (SPH) cosmological…
Baryon Acoustic Oscillations in the Sloan Digital Sky Survey Data Release 7 Galaxy Sample
Will J. Percival, Beth A. Reid, Daniel J. Eisenstein +25
The spectroscopic Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) galaxy sample represents the final set of galaxies observed using the original SDSS target selection criteria…
Clustering of Low-Redshift (z <= 2.2) Quasars from the Sloan Digital Sky Survey
Nicholas P. Ross, Yue Shen, Michael A. Strauss +8
We present measurements of the quasar two-point correlation function, ξ_{Q}, over the redshift range z=0.3-2.2 based upon data from the SDSS. Using a homogeneous sample of 30,239 q…
A quantitative explanation of the observed population of Milky Way satellite galaxies
Sergey E. Koposov, Jaiyul Yoo, Hans-Walter Rix +3
We revisit the well known discrepancy between the observed number of Milky Way (MW) dwarf satellite companions and the predicted population of cold dark matter (CDM) sub-halos, in…
Cosmological Constraints from the SDSS maxBCG Cluster Catalog
Eduardo Rozo, Risa H. Wechsler, Eli S. Rykoff +11
We use the abundance and weak lensing mass measurements of the SDSS maxBCG cluster catalog to simultaneously constrain cosmology and the richness--mass relation of the clusters. As…