Star formation and environmental quenching of GEEC2 group galaxies at z ∼ 1

A. Mok, M.L. Balogh, S.L. Mcgee, D.J. Wilman, A. Finoguenov, M. Tanaka, R.G. Bower, A. Hou, J.S. Mulchaey, L.C. Parker

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

We present new analysis from the Group Environment Evolution Collaboration 2 (GEEC2) spectroscopic survey of galaxy groups at 0.8 <z <1. Our previous work revealed an intermediate population between the star-forming and quiescent sequences and a strong environmental dependence in the fraction of quiescent galaxies. Only ∼5 per cent of star-forming galaxies in both the group and field sample show a significant enhancement in star formation, which suggests that quenching is the primary process in the transition from the star-forming to the quiescent state. To model the environmental quenching scenario, we have tested the use of different exponential quenching time-scales and delays between satellite accretion and the onset of quenching. We find that with no delay, the quenching time-scale needs to be long in order to match the observed quiescent fraction, but then this model produces too many intermediate galaxies. Fixing a delay time of 3 Gyr, as suggested from the local Universe, produces too few quiescent galaxies. The observed fractions are best matched with a model that includes a delay that is proportional to the dynamical time and a rapid quenching time-scale (∼0.25 Gyr), but this model also predicts intermediate galaxies Hδ strength higher than that observed. Using stellar synthesis models, we have tested other scenarios, such as the rejuvenation of star formation in early-type galaxies and a portion of quenched galaxies possessing residual star formation. If environment quenching plays a role in the GEEC2 sample, then our work suggests that only a fraction of intermediate galaxies may be undergoing this transition and that quenching occurs quite rapidly in satellite galaxies (≲0.25 Gyr).
Original languageEnglish
Pages (from-to)3070-3085
Number of pages16
JournalRoyal Astronomical Society. Monthly Notices
Volume438
Issue number4
DOIs
Publication statusPublished - 11 Jan 2014

Bibliographical note

Export Date: 15 August 2017

CODEN: MNRAA

Correspondence Address: Mok, A.; Department of Physics and Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada; email: ak2mok@uwaterloo.ca

References: Abadi, M.G., Moore, B., Bower, R.G., (1999) MNRAS, 308, p. 947; Arnouts, S., (2007) A&A, 476, p. 137; Balogh, M.L., Morris, S.L., Yee, H.K.C., Carlberg, R.G., Ellingson, E., (1999) ApJ, 527, p. 54; Balogh, M.L., Navarro, J.F., Morris, S.L., (2000) ApJ, 540, p. 113; Balogh, M.L., (2011) MNRAS, 412, p. 2303; Behroozi, P.S., Wechsler, R.H., Conroy, C., (2013) ApJ, 770, p. 57; Bell, E.F., McIntosh, D.H., Katz, N., Weinberg, M.D., (2003) ApJS, 149, p. 289; Bell, E.F., (2004) ApJ, 608, p. 752; Blanton, M.R., Moustakas, J., (2009) ARA&A, 47, p. 159; Blanton, M.R., Roweis, S., (2007) AJ, 133, p. 734; Bower, R.G., Benson, A.J., Malbon, R., Helly, J.C., Frenk, C.S., Baugh, C.M., Cole, S., Lacey, C.G., (2006) MNRAS, 370, p. 645; Brammer, G.B., (2009) ApJ, 706, pp. L173; Bruzual, G., (2007) From Stars to Galaxies: Building the Pieces to Build Up the Universe, 374, p. 303. , Vallenari A., Tantalo R., Portinari L., Moretti A., eds, ASP Conf. Ser. Astron. Soc. Pac., San Francisco; Bruzual, G., Charlot, S., (2003) MNRAS, 344, p. 1000; Cameron, E., (2011) Publ. Astron. Soc. Aust., 28, p. 128; Cassata, P., (2008) A&A, 483, pp. L39; Chabrier, G., (2003) PASP, 115, p. 763; Chary, R., Elbaz, D., (2001) ApJ, 556, p. 562; Cucciati, O., (2012) A&A, 539, pp. A31; De Lucia, G., Weinmann, S., Poggianti, B.M., Aragón-Salamanca, A., Zaritsky, D., (2012) MNRAS, 423, p. 1277; Dressler, A., Oemler Jr., A., Poggianti, B.M., Gladders, M.D., Abramson, L., Vulcani, B., (2013) ApJ, 770, p. 62; Eke, V.R., (2004) MNRAS, 355, p. 769; Ellingson, E., Lin, H., Yee, H.K.C., Carlberg, R.G., (2001) ApJ, 547, p. 609; Faber, S.M., (2007) ApJ, 665, p. 265; Fang, J.J., Faber, S.M., Salim, S., Graves, G.J., Rich, R.M., (2012) ApJ, 761, p. 23; Font, A.S., (2008) MNRAS, 389, p. 1619; George, M.R., (2011) ApJ, 742, p. 125; George, M.R., (2012) ApJ, 757, p. 2; Gilbank, D.G., Baldry, I.K., Balogh, M.L., Glazebrook, K., Bower, R.G., (2010) MNRAS, 405, p. 2594; Gilbank, D.G., Baldry, I.K., Balogh, M.L., Glazebrook, K., Bower, R.G., (2011) MNRAS, 412, p. 2111; Giodini, S., (2012) A&A, 538, pp. A104; Gunn, J.E., Gott III, J.R., (1972) ApJ, 176, p. 1; Hao, C.-N., Kennicutt, R.C., Johnson, B.D., Calzetti, D., Dale, D.A., Moustakas, J., (2011) ApJ, 741, p. 124; Jeltema, T.E., (2009) MNRAS, 399, p. 715; Juneau, S., (2005) ApJ, 619, pp. L135; Karim, A., (2011) ApJ, 730, p. 61; Knobel, C., (2009) ApJ, 697, p. 1842; Knobel, C., (2012) ApJ, 753, p. 121; Komatsu, E., (2011) ApJS, 192, p. 18; Kovac, K., (2013) MNRAS, , preprint (arXiv:1307.4402); Larson, R.B., Tinsley, B.M., Caldwell, C.N., (1980) ApJ, 237, p. 692; Leauthaud, A., (2012) ApJ, 746, p. 95; Lemaux, B.C., (2012) ApJ, 745, p. 106; Li, I.H., Yee, H.K.C., Hsieh, B.C., Gladders, M., (2012) ApJ, 749, p. 150; Lilly, S.J., (2007) ApJS, 172, p. 70; Lilly, S.J., (2009) ApJS, 184, p. 218; Lin, L., (2008) ApJ, 681, p. 232; McCarthy, I.G., Frenk, C.S., Font, A.S., Lacey, C.G., Bower, R.G., Mitchell, N.L., Balogh, M.L., Theuns, T., (2008) MNRAS, 383, p. 593; McGee, S.L., Balogh, M.L., Bower, R.G., Font, A.S., McCarthy, I.G., (2009) MNRAS, 400, p. 937; Madgwick, D.S., (2002) MNRAS, 333, p. 133; Mok, A., (2013) MNRAS, 431, p. 1090; Moore, B., Katz, N., Lake, G., Dressler, A., Oemler, A., (1996) Nature, 379, p. 613; Muzzin, A., (2012) ApJ, 746, p. 188; Muzzin, A., (2013) ApJ, 777, p. 18; Noeske, K.G., (2007) ApJ, 660, pp. L43; Noeske, K.G., (2007) ApJ, 660, pp. L47; Park, C., Hwang, H.S., (2009) ApJ, 699, p. 1595; Patel, S.G., Kelson, D.D., Holden, B.P., Franx, M., Illingworth, G.D., (2011) ApJ, 735, p. 53; Pelló, R., (2009) A&A, 508, p. 1173; Peng, Y.-J., (2010) ApJ, 721, p. 193; Peng, Y.-J., Lilly, S.J., Renzini, A., Carollo, M., (2012) ApJ, 757, p. 4; Presotto, V., (2012) A&A, 539, pp. A55; Rodighiero, G., (2011) ApJ, 739, pp. L40; Salim, S., Rich, R.M., (2010) ApJ, 714, pp. L290; Salim, S., (2007) ApJS, 173, p. 267; Salim, S., (2009) ApJ, 700, p. 161; Salmi, F., Daddi, E., Elbaz, D., Sargent, M.T., Dickinson, M., Renzini, A., Bethermin, M., Le Borgne, D., (2012) ApJ, 754, pp. L14; Scoville, N., (2007) ApJS, 172, p. 1; Scoville, N., (2013) ApJS, 206, p. 3; Smith, R.J., Lucey, J.R., Price, J., Hudson, M.J., Phillipps, S., (2012) MNRAS, 419, p. 3167; Strateva, I., (2001) AJ, 122, p. 1861; Tanaka, M., (2012) PASJ, 64, p. 22; Tinker, J.L., Wetzel, A.R., (2010) ApJ, 719, p. 88; van den Bosch, F.C., Aquino, D., Yang, X., Mo, H.J., Pasquali, A., McIntosh, D.H., Weinmann, S.M., Kang, X., (2008) MNRAS, 387, p. 79; Webb, T., (2013) AJ, 146, p. 84; Wetzel, A.R., Tinker, J.L., Conroy, C., (2012) MNRAS, 424, p. 232; Wetzel, A.R., Tinker, J.L., Conroy, C., van den Bosch, F.C., (2013) MNRAS, 432, p. 336; Whitaker, K.E., Kriek, M., van Dokkum, P.G., Bezanson, R., Brammer, G., Franx, M., Labbé, I., (2012) ApJ, 745, p. 179; Whitaker, K.E., van Dokkum, P.G., Brammer, G., Franx, M., (2012) ApJ, 754, pp. L29; Wilman, D.J., (2008) ApJ, 680, p. 1009

Keywords

  • Galaxies: evolution
  • Galaxies: general

Fingerprint

Dive into the research topics of 'Star formation and environmental quenching of GEEC2 group galaxies at z ∼ 1'. Together they form a unique fingerprint.

Cite this