The RESOLVE Survey Atomic Gas Census and Environmental Influences on Galaxy Gas Reservoirs

Abstract

We present the HI mass inventory for the RESOLVE survey, a volume-limited, multi-wavelength census of >1500 z=0 galaxies spanning diverse environments and complete in baryonic mass down to dwarfs of 10^9 Msun. This first 21cm data release provides robust detections or strong upper limits (1.4M_HI < 5 to 10% of stellar mass M_stars) for 94% of RESOLVE. We examine global atomic gas-to-stellar mass ratios (G/S) in relation to galaxy environment using several metrics: group dark matter halo mass M_h , central/satellite designation, relative mass density of the cosmic web, and distance to nearest massive group. We find that at fixed M_stars, satellites have decreasing G/S with increasing M_h starting clearly at M_h = 10^12 Msun, suggesting the presence of starvation and/or stripping mechanisms associated with halo gas heating in intermediate-mass groups. The analogous relationship for centrals is uncertain because halo abundance matching builds in relationships between central G/S, stellar mass, and halo mass, which depend on the integrated group property used as a proxy for halo mass (stellar or baryonic mass). On larger scales G/S trends are less sensitive to the abundance matching method. At fixed M_h < 10^12 Msun, the fraction of gas-poor centrals increases with large-scale structure density. In overdense regions, we identify a rare population of gas-poor centrals in low-mass (M_h < 10^11.4 Msun) halos primarily located within 1.5 times the virial radius of more massive (M_h > 10^12 Msun) halos, suggesting that gas stripping and/or starvation may be induced by interactions with larger halos or the surrounding cosmic web. We find that the detailed relationship between G/S and environment varies when we examine different subvolumes of RESOLVE independently, which we suggest may be a signature of assembly bias.

24 pages, 13 figures, accepted for publication in ApJ, data tables available at http://resolve.astro.unc.edu/pages/database.php

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Cited by in corpus (19)

• Cold gas stripping in satellite galaxies: from pairs to clusters
• The Dawes Review 9: The role of cold gas stripping on the star formation quenching of satellite galaxies
• The cold interstellar medium of galaxies in the Local Universe
• HI-MaNGA: Tracing the physics of the neutral and ionized ISM with the second data release
• Physical drivers of galaxies' cold-gas content: exploring environmental and evolutionary effects with DARK SAGE
• RESOLVE and ECO: Finding Low-Metallicity $z\sim 0$ Dwarf AGN Candidates Using Optimized Emission-Line Diagnostics
• Molecular hydrogen in IllustrisTNG galaxies: carefully comparing signatures of environment with local CO & SFR data
• Void Galaxies Follow a Distinct Evolutionary Path in the Environmental COntext Catalog
• The galaxy HI-(sub)halo connection and the HI spatial clustering of local galaxies
• The Baryonic Collapse Efficiency of Galaxy Groups in the RESOLVE and ECO Surveys
• The cosmic atomic hydrogen mass density as a function of mass and galaxy hierarchy from spectral stacking
• The Atomic Hydrogen Content of Galaxies as a function of Group-Centric Radius
• The HI and stellar mass bivariate distribution of centrals and satellites for all, late- and early-type local galaxies
• NeutralUniverseMachine: How Filaments and Dark Matter Halo Influence the Galaxy Cold Gas Content
• The Arecibo Galaxy Environment Survey (AGES) XI: the expanded Abell 1367 field. Data catalogue and HI census over the surveyed volume
• The multi-wavelength Tully-Fisher relation in the TNG50 cosmological simulation
• Identification and Quenching of Nugget Galaxies in the RESOLVE Survey at z = 0
• HI Content of Group Galaxies from the FAST All Sky HI Survey
• Galaxy and black hole coevolution in dark matter haloes not captured by cosmological simulations