{
  "id": "astro-ph/9810138",
  "version": "v1",
  "published": "1998-10-08T17:38:52.000Z",
  "updated": "1998-10-08T17:38:52.000Z",
  "title": "The Colour-Magnitude Relation of Early-Type Galaxies in the Hubble Deep Field",
  "authors": [
    "Tadayuki Kodama",
    "Richard G. Bower",
    "Eric F. Bell"
  ],
  "comment": "7 pages, including 2 figures, Submitted to MNRAS",
  "journal": "Astrophys.Space Sci. 276 (2001) 979-981",
  "doi": "10.1023/A:1017520213745",
  "categories": [
    "astro-ph"
  ],
  "abstract": "We present the rest-frame colour-magnitude diagram for 35 early-type galaxies in the Hubble Deep Field with median redshift 0.9. Although with considerable scatter, a red sequence well-described by the passive evolution of an intrinsically old stellar population is observed. Comparison with the passively evolved colour-magnitude relation of the rich Coma cluster ($z=0.023$) indicates that around half of the early-type galaxies in the field at this redshift are as old as those in rich clusters.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1998-10-08T17:38:52.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "hubble deep field",
      "early-type galaxies",
      "rest-frame colour-magnitude diagram",
      "rich coma cluster",
      "intrinsically old stellar population"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 490555
    }
  }
}