{
  "id": "1608.01549",
  "version": "v1",
  "published": "2016-08-04T14:33:21.000Z",
  "updated": "2016-08-04T14:33:21.000Z",
  "title": "New Suns in the Cosmos II: Differential rotation in $Kepler$ Sun-like stars",
  "authors": [
    "M. L. Das Chagas",
    "J. P. Bravo",
    "A. D. Costa",
    "C. E. Ferreira Lopes",
    "R. Silva Sobrinho",
    "F. Paz-Chinchón",
    "I. C. Leão",
    "A. Valio",
    "D. B. de Freitas",
    "B. L. Canto Martins",
    "A. F. Lanza",
    "J. R. De Medeiros"
  ],
  "comment": "9 pages, 5 figures, Accepted for publication on MNRAS",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "The present study reports the discovery of Sun-like stars, namely main-sequence stars with $T_{\\rm eff}$, $\\log g$ and rotation periods $P_{rot}$ similar to solar values, presenting evidence of surface differential rotation. An autocorrelation of the time series was used to select stars presenting photometric signal stability from a sample of 881 stars with light curves collected by the $Kepler$ space-borne telescope, in which we have identified 17 stars with stable signals. A simple two-spot model together with a Bayesian information criterion were applied to these stars in the search for indications of differential rotation; in addition, for all 17 stars, it was possible to compute the spot rotation period $P$, the mean values of the individual spot rotation periods and their respective colatitudes, and the relative amplitude of the differential rotation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-08-04T14:33:21.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "sun-like stars",
      "stars presenting photometric signal stability",
      "individual spot rotation periods",
      "select stars presenting photometric signal",
      "surface differential rotation"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}