{
  "id": "1005.3864",
  "version": "v1",
  "published": "2010-05-21T00:22:23.000Z",
  "updated": "2010-05-21T00:22:23.000Z",
  "title": "Gas in Protoplanetary Discs (GASPS) 1. First results",
  "authors": [
    "G. S. Mathews",
    "W. R. F. Dent",
    "J. P. Williams",
    "C. D. Howard",
    "G. Meeus",
    "B. Riaz",
    "A. Roberge",
    "G. Sandell",
    "B. Vandenbussche",
    "G. Duchêne",
    "I. Kamp",
    "F. Ménard",
    "B. Montesinos",
    "C. Pinte",
    "W. F. Thi",
    "P. Woitke",
    "J. M. Alacid",
    "S. M. Andrews",
    "D. R. Ardila",
    "G. Aresu",
    "J. C. Augereau",
    "D. Barrado",
    "S. Brittain",
    "D. R. Ciardi",
    "W. Danchi",
    "C. Eiroa",
    "D. Fedele",
    "C. A. Grady",
    "I. de Gregorio-Monsalvo",
    "A. Heras",
    "N. Huelamo",
    "A. Krivov",
    "J. Lebreton",
    "R. Liseau",
    "C. Martin-Zaidi",
    "I. Mendigutía",
    "A. Mora",
    "M. Morales-Calderon",
    "H. Nomura",
    "E. Pantin",
    "I. Pascucci",
    "N. Phillips",
    "L. Podio",
    "D. R. Poelman",
    "S. Ramsay",
    "K. Rice",
    "P. Riviere-Marichalar",
    "E. Solano",
    "I. Tilling",
    "H. Walker",
    "G. J. White",
    "G. Wright",
    "the GASPS Collaboration"
  ],
  "comment": "Comments: 5 pages, 2 Postscript figures, accepted for publication in the A&A Herschel special issue",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "Context - Circumstellar discs are ubiquitous around young stars, but rapidly dissipate their gas and dust on timescales of a few Myr. The Herschel space observatory allows for the study of the warm disc atmosphere, using far-infrared spectroscopy to measure gas content and excitation conditions, and far-IR photometry to constrain the dust distribution. Aims - We aim to detect and characterize the gas content of circumstellar discs in four targets as part of the Herschel science demonstration phase. Methods - We carried out sensitive medium resolution spectroscopy and high sensitivity photometry at lambda ~60-190 micron using the Photodetector Array Camera and Spectrometer instrument on the Herschel space observatory. Results - We detect [OI] 63 micron emission from the young stars HD 169142, TW Hydrae, and RECX 15, but not HD 181327. No other lines, including [CII] 158 and [OI] 145, are significantly detected. All four stars are detected in photometry at 70 and 160 micron. Extensive models are presented in associated papers.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2010-05-21T00:22:23.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.28.an",
      "20.10.pd",
      "90.48.am",
      "79.76.an",
      "64.43.an",
      "91.42.an"
    ],
    "keywords": [
      "protoplanetary discs",
      "first results",
      "herschel space observatory",
      "circumstellar discs",
      "herschel science demonstration phase"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1051/0004-6361/201014595",
      "journal": "Astronomy and Astrophysics",
      "year": 2010,
      "month": "Jul",
      "volume": 518
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 855978,
      "adsabs": "2010A&A...518L.127M"
    }
  }
}