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  "id": "J/ApJS/73/671",
  "title_cds": "M87 globular clusters BVI photometry",
  "title_create": "Couture+, 1990",
  "year": "1990",
  "author": "COUTURE J., HARRIS W.E., ALLWRIGHT J.W.B.",
  "title_pub": " BVI photometry of globular clusters in M87",
  "first_author": "COUTURE J.",
  "bibcode": [
    "1990ApJS...73..671C"
  ],
  "ref_biblio": [
    "<Astrophys. J. Suppl. Ser. 73, 671 (1990)>"
  ],
  "keyword_cds": [
    "Clusters, globular",
    "Photometry, CCD"
  ],
  "keyword_pub": "clusters: globular - galaxies: individual (M87) - stars: abundances",
  "abstract": [
    "We present CCD photometry in B, V, and I for a sample of globular clusters",
    "in the Virgo central giant elliptical galaxy M87. Our measured sample",
    "comprises  270 objects brighter than V~23.4mag and with distances r>25\"",
    "(>2kpc) from the center of the galaxy. In agreement with the recent study",
    "of Cohen, we find no detectable gradient of mean cluster color (metallicity)",
    "in (B-V) or (V-I) with radial distance. The cluster system does, however,",
    "display a large dispersion in color at any radius, corresponding to",
    "sigma([Fe/H])~0.6 about a mean metallicity (Fe/H]>~-1.1 according to our",
    "color index scale. The difference in mean color between the globular",
    "clusters and the underlying halo light of the galaxy itself, found",
    "previously by Strom and coworkers and by Cohen, shows up strongly in all",
    "of our color indices; we find virtually no clusters as red as mean color",
    "of the halo stars at any radius."
  ],
  "curator": "Marie-Jose Wagner, Patricia Bauer [CDS]",
  "tables": [
    {
      "name": "table2",
      "desc": "BVI photometry of M87 globular clusters"
    }
  ],
  "archive_date_creation": "14-Mar-1995",
  "catid": 20730671,
  "vizier_date_update": "09-Dec-1997",
  "doi_pub": [
    "10.1086/191484"
  ],
  "doi_cds": "10.26093/cds/vizier.20730671",
  "archive_date_update": "24-Oct-2022",
  "uat": [
    "Globular star clusters",
    "CCD photometry"
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