{
  "id": "1201.6377",
  "version": "v1",
  "published": "2012-01-30T21:20:35.000Z",
  "updated": "2012-01-30T21:20:35.000Z",
  "title": "The Progenitor of the Type Ia Supernova that created SNR 0519-69.0 in the Large Magellanic Cloud",
  "authors": [
    "Zachary I. Edwards",
    "Ashley Pagnotta",
    "Bradley E. Schaefer"
  ],
  "comment": "ApJLett in press",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "Models for the progenitor systems of Type Ia supernovae can be divided into double-degenerate systems, which contain two white dwarfs, and single-degenerate systems, which contain one white dwarf plus one companion star (either a red giant, a subgiant, or a >1.16 M_sol main sequence star). The white dwarf is destroyed in the supernova explosion, but any non-degenerate companion remains intact. We present the results of a search for an ex-companion star in SNR 0519-69.0, located in the Large Magellanic Cloud, based on images taken with the Hubble Space Telescope with a limiting magnitude of V = 26.05. SNR 0519-69.0 is confidently known to be from a Type Ia supernova based on its light echoes and X-ray spectra. The geometric center of the remnant (based on the H-alpha and X-ray shell) is at 05:19:34.83, -69:02:06.92 (J2000). Accounting for the measurement uncertainties, the orbital velocity, and the kick velocity, any ex-companion star must be within 4.7\" of this position at the 99.73% confidence level. This circle contains 27 main sequence stars brighter than V = 22.7, any one of which could be the ex-companion star left over from a supersoft source progenitor system. The circle contains no post-main sequence stars, and this rules out the possibility of all other published single-degenerate progenitor classes (including symbiotic stars, recurrent novae, helium donors, and the spin-up/spin-down models) for this particular supernova. The only remaining possibility is that SNR 0519-69.0 was formed from either a supersoft source or a double-degenerate progenitor system.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2012-01-30T21:20:35.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "type ia supernova",
      "large magellanic cloud",
      "created snr",
      "ex-companion star",
      "progenitor system"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1088/2041-8205/747/2/L19",
      "journal": "The Astrophysical Journal",
      "year": 2012,
      "month": "Mar",
      "volume": 747,
      "number": 2
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1086793,
      "adsabs": "2012ApJ...747L..19E"
    }
  }
}