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Cosmic Web of Galaxies in the COSMOS Field: Public Catalog and Different Quenching for Centrals and Satellites

  • Authors: Behnam Darvish, Bahram Mobasher, D. Christopher Martin, David Sobral, Nick Scoville, Andra Stroe, Shoubaneh Hemmati, and Jeyhan Kartaltepe

2017 The Astrophysical Journal 837 16.

  • Provider: AAS Journals

Caption: Figure 10.

(a)–(d) Median SFR for all star-forming, satellite star-forming, central star-forming, and isolated star-forming galaxies in the cosmic web, respectively. At z ≳ 0.5, and within the uncertainties, the median SFR for star-forming centrals, satellites, isolated, and all do not much depend on the cosmic web. However, at z ≲ 0.5, all satellite, central, and isolated (and all) star-forming galaxies show a ∼0.3–0.4 dex decline in their median SFR. These results have implications for the nature of galaxy quenching in the cosmic web and their qualitative timescales (Section 4). (e)–(h) Median stellar mass for all star-forming, satellite star-forming, central star-forming, and isolated star-forming galaxies in the cosmic web, respectively. Within the uncertainties, we see almost no change or a slight increase in some cases (∼0.2–0.3 dex in maximum) in the median stellar mass of star-forming galaxies from the field to clusters. Therefore, stellar mass differences in different parts of the cosmic web cannot much explain the observed cosmic web dependence of the SFRs here or make the trends even stronger.

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