{
  "id": "1002.0493",
  "version": "v1",
  "published": "2010-02-02T14:03:38.000Z",
  "updated": "2010-02-02T14:03:38.000Z",
  "title": "The Orbital Period of Swift J1626.6-5156",
  "authors": [
    "A. Baykal",
    "E. Gogus",
    "S. C. Inam",
    "T. Belloni"
  ],
  "comment": "12 pages, 4 figures, accepted for publication in ApJ",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We present the discovery of the orbital period of Swift J1626.6-5156. Since its discovery in 2005, the source has been monitored with Rossi X-ray Timing Explorer, especially during the early stage of the outburst and into the X-ray modulating episode. Using a data span of $\\sim$700 days, we obtain the orbital period of the system as 132.9 days. We find that the orbit is close to a circular shape with an eccentricity 0.08, that is one of the smallest among Be/X-ray binary systems. Moreover, we find that the timescale of the X-ray modulations varied, which led to earlier suggestions of orbital periods at about a third and half of the orbital period of Swift J1626.6-5156.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2010-02-02T14:03:38.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "orbital period",
      "swift j1626",
      "rossi x-ray timing explorer",
      "be/x-ray binary systems",
      "data span"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1088/0004-637X/711/2/1306",
      "journal": "The Astrophysical Journal",
      "year": 2010,
      "month": "Mar",
      "volume": 711,
      "number": 2,
      "pages": 1306
    },
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 844486,
      "adsabs": "2010ApJ...711.1306B"
    }
  }
}