{
  "id": "1508.01513",
  "version": "v1",
  "published": "2015-08-06T20:04:39.000Z",
  "updated": "2015-08-06T20:04:39.000Z",
  "title": "Chandra Observations of SNR RCW 103",
  "authors": [
    "Kari A. Frank",
    "David N. Burrows",
    "Sangwook Park"
  ],
  "comment": "14 pages, 10 figures, Accepted to ApJ",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We analyze three Chandra observations, with a combined exposure time of 99 ks, of the Galactic supernova remnant RCW 103, a young supernova remnant, previously with no clear detection of metal-rich ejecta. Based on our imaging and spectral analyses of these deep Chandra data, we find evidence for metal-rich ejecta emission scattered throughout the remnant. X-ray emission from the shocked ejecta is generally weak, and the shocked circumstellar medium (CSM) is a largely dominant component across the entire remnant. The CSM component shows abundances of ~0.5 solar, while Ne, Mg, Si, S, and Fe abundances of the ejecta are up to a few times solar. Comparison of these ejecta abundances with yields from supernova nucleosynthesis models suggests, together with the existence of a central neutron star, a progenitor mass of ~18-20 M$_\\odot$, though the Fe/Si ratios are larger than predicted. The shocked CSM emission suggests a progenitor with high mass-loss rate and subsolar metallicity.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-08-06T20:04:39.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "chandra observations",
      "snr rcw",
      "metal-rich ejecta emission scattered throughout",
      "galactic supernova remnant rcw",
      "central neutron star"
    ],
    "publication": {
      "doi": "10.1088/0004-637X/810/2/113"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1387151
    }
  }
}