{
  "id": "1611.00835",
  "version": "v1",
  "published": "2016-11-02T23:04:18.000Z",
  "updated": "2016-11-02T23:04:18.000Z",
  "title": "A Bayesian Analysis of the Ages of Four Open Clusters",
  "authors": [
    "Elizabeth J. Jeffery",
    "Ted von Hippel",
    "David A. van Dyk",
    "David C. Stenning",
    "Elliot Robinson",
    "Nathan Stein",
    "W. H. Jefferys"
  ],
  "comment": "13 pages, 8 figures, published in ApJ",
  "journal": "ApJ, 828, 79 (2016)",
  "categories": [
    "astro-ph.SR",
    "astro-ph.GA"
  ],
  "abstract": "In this paper we apply a Bayesian technique to determine the best fit of stellar evolution models to find the main sequence turn off age and other cluster parameters of four intermediate-age open clusters: NGC 2360, NGC 2477, NGC 2660, and NGC 3960. Our algorithm utilizes a Markov chain Monte Carlo technique to fit these various parameters, objectively finding the best-fit isochrone for each cluster. The result is a high-precision isochrone fit. We compare these results with the those of traditional \"by-eye\" isochrone fitting methods. By applying this Bayesian technique to NGC 2360, NGC 2477, NGC 2660, and NGC 3960, we determine the ages of these clusters to be 1.35 +/- 0.05, 1.02 +/- 0.02, 1.64 +/- 0.04, and 0.860 +/- 0.04 Gyr, respectively. The results of this paper continue our effort to determine cluster ages to higher precision than that offered by these traditional methods of isochrone fitting.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-11-02T23:04:18.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "open clusters",
      "bayesian analysis",
      "markov chain monte carlo technique",
      "bayesian technique",
      "determine cluster ages"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 13,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}