{
  "id": "1805.12175",
  "version": "v1",
  "published": "2018-05-30T18:48:49.000Z",
  "updated": "2018-05-30T18:48:49.000Z",
  "title": "Star-formation rates of cluster galaxies: nature vs nurture",
  "authors": [
    "Tatiana F. Lagana",
    "M. P. ulmer"
  ],
  "comment": "10 pages, 5 figures",
  "journal": "2018, MNRAS 475, 523",
  "doi": "10.1093/mnras/stx3210",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We analyzed 17 galaxy clusters, and investigated, for the first time, the dependence of the SFR and sSFR as a function of projected distance (as a proxy for environment) and stellar mass for cluster galaxies in an intermediate-to-high redshift range ($0.4 < z < 0.9$). We used up to nine flux points (BVRIZYJHKs magnitudes), its errors and redshifts to compute M$_{\\rm{star}}$, SFR and sSFR through spectral energy distribution fitting technique. We use a z-dependent sSFR value to distinguish star-forming (SF) from quiescent galaxies. To analyse the SFR and sSFR history we split our sample in two redshift bins: galaxies at $0.4 < z < 0.6$ and $0.6 < z < 0.9$. We separate the effects of environment and stellar mass on galaxies by comparing the properties of star-forming and quiescent galaxies at fixed environment (projected radius) and fixed stellar mass. For the selected spectroscopic sample of more than 500 galaxies, the well-known correlation between SFR and $M_{\\rm star}$ is already in place at $z \\sim 0.9$, for both SF and quenched galaxies. Our results are consistent with no evidence that SFR (or sSFR) depends on environment, suggesting that for cluster galaxies at an intermediate-to-high redshift range, mass is the primary characteristic that drives SFR.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-05-30T18:48:49.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "cluster galaxies",
      "star-formation rates",
      "stellar mass",
      "intermediate-to-high redshift range",
      "quiescent galaxies"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}