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The Relationship between Stellar Mass, Gas Metallicity, and Star Formation Rate for Halpha-selected Galaxies at z~0.8 from the NewHalpha Survey
Mithi A. de los Reyes, Chun Ly, Janice C. Lee +8
Using a sample of 299 Ha-selected galaxies at z~0.8, we study the relationship between galaxy stellar mass, gas-phase metallicity, and star formation rate (SFR), and compare to pre…
Evolution of the atomic and molecular gas content of galaxies in dark matter haloes
G. Popping, P. S. Behroozi, M. S. Peeples
We present a semi-empirical model to infer the atomic and molecular hydrogen content of galaxies as a function of halo mass and time. Our model combines the SFR-halo mass-redshift…
The COS-Dwarfs Survey: The Carbon Reservoir Around sub-L* Galaxies
Rongmon Bordoloi, Jason Tumlinson, Jessica K. Werk +12
We report new observations of circumgalactic gas from the COS-Dwarfs survey, a systematic investigation of the gaseous halos around 43 low-mass z 0.1 galaxies using backgrou…
The Photon Underproduction Crisis
Juna A. Kollmeier, David H. Weinberg, Benjamin D. Oppenheimer +9
We examine the statistics of the low-redshift Lyman-alpha forest from smoothed particle hydrodynamic simulations in light of recent improvements in the estimated evolution of the c…
A Framework for Empirical Galaxy Phenomenology: The Scatter in Galaxy Ages and Stellar Metallicities
Joseph A. Muñoz, Molly S. Peeples
We develop a theoretical framework that extracts a deeper understanding of galaxy formation from empirically-derived relations among galaxy properties by extending the main-sequenc…
The COS-Halos Survey: Physical Conditions and Baryonic Mass in the Low-Redshift Circumgalactic Medium
Jessica K. Werk, J. Xavier Prochaska, Jason Tumlinson +13
We analyze the physical conditions of the cool, photoionized (T K) circumgalactic medium (CGM) using the COS-Halos suite of gas column density measurements for 44 gaseo…