{
  "id": "1509.07873",
  "version": "v1",
  "published": "2015-09-25T20:04:47.000Z",
  "updated": "2015-09-25T20:04:47.000Z",
  "title": "Absolute dimensions of the metallic-line eclipsing binary V501 Monocerotis",
  "authors": [
    "Guillermo Torres",
    "Claud H. Sandberg Lacy",
    "Kresimir Pavlovski",
    "Francis C. Fekel",
    "Matthew W. Muterspaugh"
  ],
  "comment": "11 pages in emulateapj format, including 8 tables and 11 figures. Accepted for publication in The Astronomical Journal",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "We report extensive high-resolution spectroscopic observations and V-band differential photometry of the slightly eccentric 7.02-day detached eclipsing binary V501 Mon (A6m+F0), which we use to determine its absolute dimensions to high precision (0.3% for the masses and 1.8% for the radii, or better). The absolute masses, radii, and temperatures are M(A) = 1.6455 +/- 0.0043 M(Sun), R(A) = 1.888 +/- 0.029 R(Sun), and T(A) = 7510 +/- 100 K for the primary, and M(B) = 1.4588 +/- 0.0025 M(Sun), R(B) = 1.592 +/- 0.028 R(Sun), and T(B) = 7000 +/- 90 K for the secondary. Apsidal motion has been detected, to which General Relativity contributes approximately 70%. The primary star is found to be a metallic-line A star. A detailed chemical analysis of the disentangled spectra yields abundances for more than a dozen elements in each star. Based on the secondary, the system metallicity is near solar: [Fe/H] = +0.01 +/- 0.06. Lithium is detected in the secondary but not in the primary. A comparison with current stellar evolution models shows a good match to the measured properties at an age of about 1.1 Gyr.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-09-25T20:04:47.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "metallic-line eclipsing binary v501 monocerotis",
      "absolute dimensions",
      "extensive high-resolution spectroscopic observations"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}