{
  "id": "astro-ph/0205374",
  "version": "v1",
  "published": "2002-05-22T18:37:59.000Z",
  "updated": "2002-05-22T18:37:59.000Z",
  "title": "Chandra Observations of Abell 2029: No Cooling Flow and a Steep Abundance Gradient",
  "authors": [
    "Aaron D. Lewis",
    "John T. Stocke",
    "David A. Buote"
  ],
  "comment": "5 pages (latex emulateapj5 format), 5 eps figures, To Appear in ApJ Letters",
  "journal": "Astrophys.J. 573 (2002) L13-17",
  "doi": "10.1086/341990",
  "categories": [
    "astro-ph"
  ],
  "abstract": "We have obtained high spatial resolution temperature and abundance profiles for the galaxy cluster Abell 2029 with the Chandra ACIS-S instrument. Our observations reveal that the spectra are well-fit by a single-phase gas in each annulus. While the temperature of the intracluster medium drops from ~9 keV at 3 arcmin (260 kpc) to 3 keV in the central 5 arcsec (5 kpc) of the cluster, there is no evidence for gas emitting at temperatures below 3 keV. The addition of a cooling flow component does not improve the fits, despite previous claims for a massive cooling flow. There is also no evidence for excess absorption above the Galactic N_H value. We also observe a steep Fe abundance gradient, such that Z_Fe >= 2 Z_solar (assuming meteoritic solar Fe abundance) in the core, consistent with significant enrichment from Fe-rich Type Ia supernovae in the cD galaxy. The Fe abundance drops to ~0.5 Z_solar at 3 arcmin (260 kpc), in good agreement with previous BeppoSAX measurements. The high resolution image reveals neither a strong central point source, nor any filamentary structure related to a cooling flow or a merger. The absence of a strong merger signature argues against the creation of the wide-angle-tail radio source morphology in a merger event. (modified for astro-ph).",
  "revisions": [
    {
      "version": "v1",
      "updated": "2002-05-22T18:37:59.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "cooling flow",
      "steep abundance gradient",
      "chandra observations",
      "steep fe abundance gradient",
      "high spatial resolution temperature"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 594733
    }
  }
}