{
  "id": "1703.10341",
  "version": "v1",
  "published": "2017-03-30T07:49:04.000Z",
  "updated": "2017-03-30T07:49:04.000Z",
  "title": "Parallaxes and Infrared Photometry of three Y0 dwarfs",
  "authors": [
    "R. L. Smart",
    "Dániel Apai",
    "J. Davy Kirkpatrick",
    "S. K. Leggett",
    "F. Marocco",
    "Jane E. Morrison",
    "H. R. A. Jones",
    "D. Pinfield",
    "P. Tremblin",
    "D. S. Amundsen"
  ],
  "comment": "12 Pages, 10 figures, Accepted by MNRAS",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "We have followed up the three Y0 dwarfs WISEPA J041022.71+150248.5, WISEPA J173835.53+273258.9 and WISEPC J205628.90+145953.3 using the UKIRT/WFCAM telescope/instruments. We find parallaxes that are more consistent and accurate than previously published values. We estimate absolute magnitudes in photometric pass-bands from $Y$ to $W3$ and find them to be consistent between the three Y0 dwarfs indicating the inherent cosmic absolute magnitude spread of these objects is small. We examine the MKO $J$ magnitudes over the four year time line and find small but significant monotonic variations. Finally we estimate physical parameters from a comparison of spectra and parallax to equilibrium and non-equilibrium models finding values consistent with solar metallicity, an effective temperature of 450-475\\,K and log~g of 4.0-4.5.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-03-30T07:49:04.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "y0 dwarfs",
      "infrared photometry",
      "inherent cosmic absolute magnitude spread",
      "non-equilibrium models finding values consistent",
      "estimate absolute magnitudes"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}