The GALEX Arecibo SDSS Survey - VIII. Final data release. The effect of group environment on the gas content of massive galaxies

By B. Catinella, David Schiminovich, L. Cortese, S. Fabello, Cameron Hummels, S. M. Moran, J. Lemonias, A. Cooper, R. Wu, T. Heckman and 1 more. 2013

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We present the final data release from the GALEX Arecibo SDSS Survey (GASS), a large Arecibo program that measured the Hi properties for an unbiased sample of �800 galaxies with stellar masses greater than 10 10 M⊙ and redshifts 0.025 < z < 0.05. This release includes new Arecibo observations for 250 galaxies. We use the full GASS sample to investigate environmental effects on the cold gas content of massive galaxies at fixed stellar mass. The environment is characterized in terms of dark matter halo mass, obtained by cross-matching our sample with the SDSS group catalog of Yang et al. Our analysis provides, for the first time, clear statistical evidence that massive galaxies located in halos with masses of 10 13 10 14 M⊙ have at least 0.4 dex less Hi than objects in lower density environments. The process responsible for the suppression of gas in group galaxies most likely drives the observed quenching of the star formation in these systems. Our findings strongly support the importance of the group environment for galaxy evolution, and have profound implications for semi-analytic models of galaxy formation, which currently do not allow for stripping of the cold interstellar medium in galaxy groups.

Subfields: Astronomy and Astrophysics, Instrumentation, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/ba865a519bfe60b0e243721b8ee1c24056ce4050

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Citations in the corpus

Cold gas stripping in satellite galaxies: from pairs to clusters (2016, background): “…highest density environments such as galaxy clusters (Giovanelli & Haynes 1985; Chung et al. 2009; Cortese et al. 2011; Serra et al. 2012), and that gas processing begins to occur within the group environment (Kilborn et al. 2009; Rasmussen et al. 2012; Catinella et al. 2013; Hess & Wilcots 2013).”
PHIBSS: Unified Scaling Relations of Gas Depletion Time and Molecular Gas Fractions (2017, background): “In massive z~0 SFGs the integrated atomic molecular hydrogen content dominates the total mass of the neutral ISM, MHI~2-3 Mmolgas (e.g. Saintonge et al. 2011a and references therein, Catinella et al. 2010, 2013).”
xGASS: total cold gas scaling relations and molecular-to-atomic gas ratios of galaxies in the local Universe (2018, methodology): “The catalogues presented in our three GASS data releases (Catinella et al. 2010, 2012b, 2013) and in this work, as well as the full XGASS representative sample (see Section 2.2), are available on the XGASS website,6 along with all the Arecibo H I spectra in digital format.”
Evolution of the atomic and molecular gas content of galaxies (2013, background): “We compare our results to a compilation of observations presented in Leroy et al. (2008), Saintonge et al. (2011), and Catinella et al. (2013) based on the THINGS+HERACLES and GASS+COLDGASS surveys and in Boselli et al. (2014) based on the Herschel reference survey.”
LoCuSS: THE SLOW QUENCHING OF STAR FORMATION IN CLUSTER GALAXIES AND THE NEED FOR PRE-PROCESSING (2015, background): “Galaxies in groups with masses M1013≳ ⊙ are H I-deficient at fixed stellar mass and NUV−r color, suggesting that ram-pressure stripping can remove atomic gas from ∼L* spirals in such groups (Catinella et al. 2013).”
Not so lumpy after all: modelling the depletion of dark matter subhaloes by Milky Way-like galaxies (2017, background): “This is a reasonable approximation at z = 0, where the gas fractions in the disks of our simulated host galaxies are ≈ 15%, comparable to the MW, M31, and similar galaxies (Yin et al. 2009; Catinella et al. 2010, 2012, 2013).”
The SAMI Galaxy Survey: Instrument specification and target selection (2014, background): “Interestingly, this range of group masses is where the cold gas content and star formation activity of galaxies starts to be affected by the environment (Catinella et al. 2013), making SAMI an ideal dataset to study how nurture influences the star formation cycle of galaxies.”
Flux- and volume-limited groups/clusters for the SDSS galaxies: catalogues and mass estimation (2014, background): “…morphology, structure, gas content, star formation rate, merger rate, etc. of galaxies on their local environment (some most recent examples include Tempel et al., 2009; Carollo et al., 2013; Catinella et al., 2013; Hess & Wilcots, 2013; Kaviraj, 2014; Lackner & Gunn, 2013; Peng & Maiolino, 2014).”