{
  "id": "1008.1775",
  "version": "v1",
  "published": "2010-08-10T19:11:48.000Z",
  "updated": "2010-08-10T19:11:48.000Z",
  "title": "Shocks and a Giant Planet in the Disk Orbiting BP Piscium?",
  "authors": [
    "C. Melis",
    "C. Gielen",
    "C. H. Chen",
    "Joseph H. Rhee",
    "Inseok Song",
    "B. Zuckerman"
  ],
  "comment": "25 pages, 4 figures, 1 table. Accepted to ApJ",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "Spitzer IRS spectroscopy supports the interpretation that BP Piscium, a gas and dust enshrouded star residing at high Galactic latitude, is a first-ascent giant rather than a classical T Tauri star. Our analysis suggests that BP Piscium's spectral energy distribution can be modeled as a disk with a gap that is opened by a giant planet. Modeling the rich mid-infrared emission line spectrum indicates that the solid-state emitting grains orbiting BP Piscium are primarily composed of ~75 K crystalline, magnesium-rich olivine; ~75 K crystalline, magnesium-rich pyroxene; ~200 K amorphous, magnesium-rich pyroxene; and ~200 K annealed silica ('cristobalite'). These dust grains are all sub-micron sized. The giant planet and gap model also naturally explains the location and mineralogy of the small dust grains in the disk. Disk shocks that result from disk-planet interaction generate the highly crystalline dust which is subsequently blown out of the disk mid-plane and into the disk atmosphere.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2010-08-10T19:11:48.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "disk orbiting bp piscium",
      "giant planet",
      "grains orbiting bp piscium",
      "mid-infrared emission line spectrum",
      "emitting grains orbiting bp"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1088/0004-637X/724/1/470",
      "journal": "The Astrophysical Journal",
      "year": 2010,
      "month": "Nov",
      "volume": 724,
      "number": 1,
      "pages": 470
    },
    "note": {
      "typesetting": "TeX",
      "pages": 25,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 865015,
      "adsabs": "2010ApJ...724..470M"
    }
  }
}