{
  "id": "astro-ph/9808038",
  "version": "v1",
  "published": "1998-08-05T16:49:08.000Z",
  "updated": "1998-08-05T16:49:08.000Z",
  "title": "A Photometric and Kinematic Study of AWM 7",
  "authors": [
    "Daniel Koranyi",
    "Margaret J. Geller",
    "Joseph J. Mohr",
    "Gary Wegner"
  ],
  "comment": "37 pages, LaTeX, including 12 Figures and 1 Table. Accepted for publication in the Astronomical Journal",
  "doi": "10.1086/300611",
  "categories": [
    "astro-ph"
  ],
  "abstract": "We have measured redshifts and Kron-Cousins R-band magnitudes for a sample of galaxies in the poor cluster AWM 7. We have measured redshifts for 172 galaxies; 106 of these are cluster members. We determine the luminosity function from a photometric survey of the central 1.2 h^{-1} x 1.2 h^{-1} Mpc. The LF has a bump at the bright end and a faint-end slope of \\alpha = -1.37+-0.16, populated almost exclusively by absorption-line galaxies. The cluster velocity dispersion is lower in the core (\\sim 530 km/s) than at the outskirts (\\sim 680 km/s), consistent with the cooling flow seen in the X-ray. The cold core extends \\sim 150 h^{-1} kpc from the cluster center. The Kron-Cousins R-band mass-to-light ratio of the system is 650+-170 h M_\\odot/L_\\odot, substantially lower than previous optical determinations, but consistent with most previous X-ray determinations. We adopt H_0 = 100 h km/s/Mpc throughout this paper; at the mean cluster redshift, (5247+-76 km/s), 1 h^{-1} Mpc subtends 65$\\farcm$5.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1998-08-05T16:49:08.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "kinematic study",
      "photometric",
      "kron-cousins r-band mass-to-light ratio",
      "measured redshifts",
      "mean cluster redshift"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 37,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 489852
    }
  }
}