{
  "id": "astro-ph/0509500",
  "version": "v1",
  "published": "2005-09-16T14:37:21.000Z",
  "updated": "2005-09-16T14:37:21.000Z",
  "title": "Evolution of morphology in the Chandra Deep Field South",
  "authors": [
    "Sébastien Lauger",
    "Olivier Ilbert",
    "Véronique Buat",
    "Laurence Tresse",
    "Denis Burgarella",
    "Stéphane Arnouts",
    "Olivier Le Fèvre",
    "the VVDS team Collaboration"
  ],
  "comment": "To appear in The Fabulous Destiny of Galaxies: Bridging Past and Present, conference held in Marseille, June 2005",
  "categories": [
    "astro-ph"
  ],
  "abstract": "We studied the morphology of galaxies in the Chandra Deep Field South using ACS multi-wavelength data from the Great Observatories Origin Deep Survey and 524 spectroscopic redshifts from the VIMOS VLT Deep Survey completed with 2874 photometric redshift computed from COMBO-17 multi-color data. The rest-frame B-band makes it possible to discriminate two morphological types in an asymmetry-concentration diagram: bulge- and disk-dominated galaxies. The rest-frame color index $B-I$ is found to be very correlated with the morphological classification: wholly bulge-dominated galaxies are redder than disk-dominated galaxies. However color allowed us to distinguish a population of faint blue bulge-dominated galaxies ($B-I<0.9$), whose nature is still unclear. Using the rest-frame B-band classification from $z\\sim0.15$ up to $z\\sim1.1$, we quantified the evolution of the proportion of morphological types as a function of the redshift. Our large sample allowed us to compute luminosity functions per morphological type in rest-frame B-band. The bulge-dominated population is found to be composite: on the one hand the red ($(B-I)\\_{AB}>0.9$), bright galaxies, which seem to increase in density toward low redshifts. On the other hand the blue, compact, faint bulge-dominated galaxies, strongly evolving with the redshift.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2005-09-16T14:37:21.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "chandra deep field south",
      "rest-frame b-band",
      "vlt deep survey",
      "bulge-dominated galaxies",
      "great observatories origin deep survey"
    ],
    "tags": [
      "conference paper"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 692473,
      "adsabs": "2005sf2a.conf..667L"
    }
  }
}