Satellite quenching and galactic conformity at 0.3 < z < 2.5

Journal Article · Wed Jan 20 04:00:00 EST 2016 · Astrophysical Journal

DOI:https://doi.org/10.3847/0004-637X/817/1/9· OSTI ID:22887122

Kawinwanichakij, Lalitwadee; Quadri, Ryan F.; Papovich, Casey; Tran, Kim-Vy H. ^[1]; Kacprzak, Glenn G.; Allen, Rebecca; Glazebrook, Karl; Nanayakkara, Themiya ^[2]; Labbé, Ivo; Straatman, Caroline M. S. ^[3]; Spitler, Lee R.; Cowley, Michael ^[4]; Behroozi, Peter ^[5]; Dekel, Avishai ^[6]; Hartley, W. G ^[7]; Kelson, Daniel D.; Lu, Yu; Persson, S. Eric ^[8]; Koo, David C. ^[9]; Lee, Seong-Kook ^[10] ; others, and

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1. George P. and Cynthia W. Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A and M University, College Station, TX 77843 (United States)
2. Centre for Astrophysics and Supercomputing, Swinburne University, Hawthorn, VIC 3122 (Australia)
3. Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden (Netherlands)
4. Department of Physics and Astronomy, Faculty of Sciences, Macquarie University, Sydney, NSW 2109 (Australia)
5. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)
6. Center for Astrophysics and Planetary Science, Racah Institute of Physics, The Hebrew University, Jerusalem 91904 (Israel)
7. School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD (United Kingdom)
8. The Observatories, The Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101 (United States)
9. University of California Observatories/Lick Observatory, University of California, Santa Cruz, CA 95064 (United States)
10. Center for the Exploration of the Origin of the Universe, Department of Physics and Astronomy, Seoul National University, Seoul (Korea, Republic of)

We measure the evolution of the quiescent fraction and quenching efficiency of satellites around star-forming and quiescent central galaxies with stellar mass log(M{sub cen}/M{sub ⊙})>10.5 at 0.39.3. Satellites for both star-forming and quiescent central galaxies (“centrals”) have higher quiescent fractions compared to field galaxies matched in stellar mass at all redshifts. We also observe “galactic conformity”: satellites around quiescent centrals are more likely to be quenched compared to the satellites around star-forming centrals. In our sample, this conformity signal is significant at ≳3σ for 0.6

• OSTI ID: 22887122
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 1 Vol. 817; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United Kingdom
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
COMPARATIVE EVALUATIONS
GALACTIC EVOLUTION
GALAXIES
MASS
RED SHIFT
SATELLITES
STARS
STATISTICS
UNIVERSE