The evolution of star formation activity in galaxy groups

G. Erfanianfar, P. Popesso, A. Finoguenov, S. Wuyts, D. Wilman, A. Biviano, F. Ziparo, M. Salvato, K. Nandra, D. Lutz, D. Elbaz, M. Dickinson, M. Tanaka, M. Mirkazemi, M. L. Balogh, M. B. Altieri, H. Aussel, F. Bauer, S. Berta, R. M. BielbyN. Brandt, Nico Cappelluti, A. Cimatti, M. Cooper, D. Fadda, O. Ilbert, E. Le Floch, B. Magnelli, J. S. Mulchaey, R. Nordon, J. A. Newman, A. Poglitsch, F. Pozzi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We study the evolution of the total star formation (SF) activity, total stellar mass (∑M*) and halo occupation distribution (HOD) in massive haloes by using one of the largest X-ray selected sample of galaxy groups with secure spectroscopic identification in the major blank field surveys (ECDFS, CDFN, COSMOS, AEGIS). We provide an accurate measurement of star formation rate (SFR) for the bulk of the star-forming galaxies using very deep mid-infrared Spitzer MIPS and far-infrared Herschel PACS observations. For undetected IR sources, we provide a well-calibrated SFR from spectral energy distribution (SED) fitting. We observe a clear evolution in the level of SF activity in galaxy groups. The total SF activity in the high-redshift groups (0.5 < z < 1.1) is higher with respect to the low-redshift (0.15 < z < 0.5) sample at any mass by 0.8 ± 0.12 dex. A milder difference (0.35 ± 0.1 dex) is observed between the low-redshift bin and the groups at z ~ 0. We show that the level of SF activity is declining more rapidly in the more massive haloes than in the more common lower mass haloes. We do not observe any evolution in the HOD and total stellar mass-halo mass relations in groups. The picture emerging from our findings suggests that the galaxy population in the most massive systems is evolving faster than galaxies in lower mass haloes, consistently with a 'halo downsizing' scenario.

Original languageEnglish (US)
Pages (from-to)2725-2745
Number of pages21
JournalMonthly Notices of the Royal Astronomical Society
Volume445
Issue number3
DOIs
StatePublished - Jan 1 2014
Externally publishedYes

Fingerprint

galactic clusters
star formation
halos
occupation
star formation rate
galaxies
stellar mass
field survey
blanks
spectral energy distribution
emerging
stars
energy
distribution

Keywords

  • Catalogues
  • Cosmology: observations
  • Galaxies: evolution
  • Infrared: galaxies
  • Large-scale structure of Universe

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Erfanianfar, G., Popesso, P., Finoguenov, A., Wuyts, S., Wilman, D., Biviano, A., ... Pozzi, F. (2014). The evolution of star formation activity in galaxy groups. Monthly Notices of the Royal Astronomical Society, 445(3), 2725-2745. https://doi.org/10.1093/mnras/stu1883

The evolution of star formation activity in galaxy groups. / Erfanianfar, G.; Popesso, P.; Finoguenov, A.; Wuyts, S.; Wilman, D.; Biviano, A.; Ziparo, F.; Salvato, M.; Nandra, K.; Lutz, D.; Elbaz, D.; Dickinson, M.; Tanaka, M.; Mirkazemi, M.; Balogh, M. L.; Altieri, M. B.; Aussel, H.; Bauer, F.; Berta, S.; Bielby, R. M.; Brandt, N.; Cappelluti, Nico; Cimatti, A.; Cooper, M.; Fadda, D.; Ilbert, O.; Le Floch, E.; Magnelli, B.; Mulchaey, J. S.; Nordon, R.; Newman, J. A.; Poglitsch, A.; Pozzi, F.

In: Monthly Notices of the Royal Astronomical Society, Vol. 445, No. 3, 01.01.2014, p. 2725-2745.

Research output: Contribution to journalArticle

Erfanianfar, G, Popesso, P, Finoguenov, A, Wuyts, S, Wilman, D, Biviano, A, Ziparo, F, Salvato, M, Nandra, K, Lutz, D, Elbaz, D, Dickinson, M, Tanaka, M, Mirkazemi, M, Balogh, ML, Altieri, MB, Aussel, H, Bauer, F, Berta, S, Bielby, RM, Brandt, N, Cappelluti, N, Cimatti, A, Cooper, M, Fadda, D, Ilbert, O, Le Floch, E, Magnelli, B, Mulchaey, JS, Nordon, R, Newman, JA, Poglitsch, A & Pozzi, F 2014, 'The evolution of star formation activity in galaxy groups', Monthly Notices of the Royal Astronomical Society, vol. 445, no. 3, pp. 2725-2745. https://doi.org/10.1093/mnras/stu1883
Erfanianfar G, Popesso P, Finoguenov A, Wuyts S, Wilman D, Biviano A et al. The evolution of star formation activity in galaxy groups. Monthly Notices of the Royal Astronomical Society. 2014 Jan 1;445(3):2725-2745. https://doi.org/10.1093/mnras/stu1883
Erfanianfar, G. ; Popesso, P. ; Finoguenov, A. ; Wuyts, S. ; Wilman, D. ; Biviano, A. ; Ziparo, F. ; Salvato, M. ; Nandra, K. ; Lutz, D. ; Elbaz, D. ; Dickinson, M. ; Tanaka, M. ; Mirkazemi, M. ; Balogh, M. L. ; Altieri, M. B. ; Aussel, H. ; Bauer, F. ; Berta, S. ; Bielby, R. M. ; Brandt, N. ; Cappelluti, Nico ; Cimatti, A. ; Cooper, M. ; Fadda, D. ; Ilbert, O. ; Le Floch, E. ; Magnelli, B. ; Mulchaey, J. S. ; Nordon, R. ; Newman, J. A. ; Poglitsch, A. ; Pozzi, F. / The evolution of star formation activity in galaxy groups. In: Monthly Notices of the Royal Astronomical Society. 2014 ; Vol. 445, No. 3. pp. 2725-2745.
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AU - Popesso, P.

AU - Finoguenov, A.

AU - Wuyts, S.

AU - Wilman, D.

AU - Biviano, A.

AU - Ziparo, F.

AU - Salvato, M.

AU - Nandra, K.

AU - Lutz, D.

AU - Elbaz, D.

AU - Dickinson, M.

AU - Tanaka, M.

AU - Mirkazemi, M.

AU - Balogh, M. L.

AU - Altieri, M. B.

AU - Aussel, H.

AU - Bauer, F.

AU - Berta, S.

AU - Bielby, R. M.

AU - Brandt, N.

AU - Cappelluti, Nico

AU - Cimatti, A.

AU - Cooper, M.

AU - Fadda, D.

AU - Ilbert, O.

AU - Le Floch, E.

AU - Magnelli, B.

AU - Mulchaey, J. S.

AU - Nordon, R.

AU - Newman, J. A.

AU - Poglitsch, A.

AU - Pozzi, F.

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