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Herschel-PACS observation of the 10 Myr old T Tauri disk TW Hya Constraining the disk gas mass

Thi, W. F. (author)
University of Edinburgh,Université Grenoble Alpes,Grenoble Alpes University
Mathews, G. (author)
University of Hawaii
Menard, F. (author)
Université Grenoble Alpes,Grenoble Alpes University
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Woitke, P. (author)
University of Edinburgh,University of St Andrews,Royal Observatory
Meeus, G. (author)
Universidad Autonoma de Madrid (UAM)
Riviere-Marichalar, P. (author)
Centro de Astrobiologia (CAB)
Pinte, C. (author)
Université Grenoble Alpes,Grenoble Alpes University,University of Exeter
Howard, C. D. (author)
NASA Ames Research Center
Roberge, A. (author)
NASA Goddard Space Flight Center
Sandell, G. (author)
NASA Ames Research Center
Pascucci, I. (author)
Space Telescope Science Institute (STScI)
Riaz, B. (author)
Space Telescope Science Institute (STScI)
Grady, C. A. (author)
NASA Goddard Space Flight Center
Dent, W. R. F. (author)
Atacama Large Millimeter-submillimeter Array (ALMA)
Kamp, I. (author)
Rijksuniversiteit Groningen,University of Groningen
Duchene, G. (author)
University of California,Université Grenoble Alpes,Grenoble Alpes University
Augereau, J. C. (author)
Université Grenoble Alpes,Grenoble Alpes University
Pantin, E. (author)
Institut de Recherche sur les Lois Fondamentales de l'Univers
Vandenbussche, B. (author)
Katholieke Universiteit Leuven
Tilling, I. (author)
University of Edinburgh
Williams, J. P. (author)
University of Hawaii
Eiroa, C. (author)
Universidad Autonoma de Madrid (UAM)
Barrado, D. (author)
Calar Alto Astronomical Observatory,Centro de Astrobiologia (CAB)
Alacid, J. M. (author)
Centro de Astrobiologia (CAB)
Andrews, S. (author)
Harvard-Smithsonian Center for Astrophysics
Ardila, D. R. (author)
California Institute of Technology (Caltech)
Aresu, G. (author)
Rijksuniversiteit Groningen,University of Groningen
Brittain, S. (author)
Clemson University
Ciardi, D. R. (author)
National Aeronautics and Space Administration (NASA)
Danchi, W. (author)
NASA Goddard Space Flight Center
Fedele, D. (author)
Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Johns Hopkins University,Universidad Autonoma de Madrid (UAM)
de Gregorio-Monsalvo, I. (author)
Atacama Large Millimeter-submillimeter Array (ALMA)
Heras, A. (author)
European Space Research and Technology Centre (ESA ESTEC)
Huelamo, N. (author)
Royal Observatory
Krivov, A. (author)
Friedrich-Schiller-Universität Jena,Friedrich Schiller University Jena
Lebreton, J. (author)
Université Grenoble Alpes,Grenoble Alpes University
Liseau, René, 1949 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Martin-Zaidi, C. (author)
Université Grenoble Alpes,Grenoble Alpes University
Mendigutia, I. (author)
Royal Observatory
Montesinos, B. (author)
Royal Observatory
Morales-Calderon, M. (author)
European Space Astronomy Centre (ESAC)
Nomura, H. (author)
Kyoto University
Phillips, N. (author)
University of Edinburgh
Podio, L. (author)
Rijksuniversiteit Groningen,University of Groningen
Poelman, D. R. (author)
University of St Andrews
Ramsay, S. (author)
European Southern Observatory (ESO)
Rice, K. (author)
University of Edinburgh
Solano, E. (author)
Centro de Astrobiologia (CAB)
Walker, H. (author)
STFC Rutherford Appleton Laboratory
White, G. J. (author)
Open University,STFC Rutherford Appleton Laboratory
Wright, G. (author)
Royal Observatory
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 (creator_code:org_t)
2010-07-16
2010
English.
In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 518:Article Number: L125
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  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • Planets are formed in disks around young stars. With an age of similar to 10 Myr, TW Hya is one of the nearest T Tauri stars that is still surrounded by a relatively massive disk. In addition a large number of molecules has been found in the TW Hya disk, making TW Hya the perfect test case in a large survey of disks with Herschel-PACS to directly study their gaseous component. We aim to constrain the gas and dust mass of the circumstellar disk around TW Hya. We observed the fine-structure lines of [OI] and [CII] as part of the open-time large program GASPS. We complement this with continuum data and ground-based (12) CO 3-2 and (CO)-C-13 3-2 observations. We simultaneously model the continuum and the line fluxes with the 3D Monte-Carlo code MCFOST and the thermo-chemical code ProDiMo to derive the gas and dust masses. We detect the [OI] line at 63 mu m. The other lines that were observed, [OI] at 145 mu m and [CII] at 157 mu m, are not detected. No extended emission has been found. Preliminary modeling of the photometric and line data assuming [(CO)-C-12]/[(CO)-C-13] = 69 suggests a dust mass for grains with radius

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

spectra
array
emission
circumstellar disks
protoplanetary disks
young stars
hydrae
models
main-sequence stars
x-ray

Publication and Content Type

art (subject category)
ref (subject category)

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