GAS in Protoplanetary Systems (GASPS) I. First results
Journal article, 2010
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 gimel similar to 60-190 mu m using the Photodetector Array Camera and Spectrometer instrument on the Herschel Space Observatory. Results. We detect [OI] 63 mu m 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 mu m. Extensive models are presented in associated papers.
mu-m
stars: pre-main sequence
protoplanetary disks
mass-loss
emission
fine-structure lines
herbig-ae
disk
iso-lws
eta-chamaeleontis cluster
infrared: stars
young stars
tw-hydrae
Author
G. S. Mathews
University of Hawaii
W. R. F. Dent
European Southern Observatory Santiago
Atacama Large Millimeter-submillimeter Array (ALMA)
J. P. Williams
University of Hawaii
C. D. Howard
National Aeronautics and Space Administration (NASA)
G. Meeus
Universidad Autonoma de Madrid (UAM)
B. Riaz
Space Telescope Science Institute (STScI)
A. Roberge
National Aeronautics and Space Administration (NASA)
G. Sandell
National Aeronautics and Space Administration (NASA)
B. Vandenbussche
KU Leuven
G. Duchene
University of California
Grenoble Alpes University
I. Kamp
University of Groningen
F. Menard
Grenoble Alpes University
B. Montesinos
Centro de Astrobiologia (CAB)
C. Pinte
Grenoble Alpes University
University of Exeter
W. F. Thi
Grenoble Alpes University
Royal Observatory
P. Woitke
University of St Andrews
University of Edinburgh
Royal Observatory
J. M. Alacid
Spanish Virtual Observatory
Centro de Astrobiologia (CAB)
S. Andrews
Harvard-Smithsonian Center for Astrophysics
D. R. Ardila
California Institute of Technology (Caltech)
G. Aresu
University of Groningen
J. C. Augereau
Grenoble Alpes University
D. Barrado
Centro de Astrobiologia (CAB)
Calar Alto Astronomical Observatory
S. Brittain
Clemson University
D. R. Ciardi
National Aeronautics and Space Administration (NASA)
W. Danchi
National Aeronautics and Space Administration (NASA)
C. Eiroa
Universidad Autonoma de Madrid (UAM)
D. Fedele
Johns Hopkins University
Universidad Autonoma de Madrid (UAM)
Max Planck Society
C. A. Grady
National Aeronautics and Space Administration (NASA)
I. de Gregorio-Monsalvo
Atacama Large Millimeter-submillimeter Array (ALMA)
European Southern Observatory Santiago
A. Heras
European Space Agency (ESA)
N. Huelamo
University of Groningen
A. Krivov
Friedrich Schiller University Jena
J. Lebreton
KU Leuven
René Liseau
Chalmers, Earth and Space Sciences, Radio Astronomy and Astrophysics
C. Martin-Zaidi
KU Leuven
I. Mendigutia
Centro de Astrobiologia (CAB)
A. Mora
European Space Agency (ESA)
M. Morales-Calderon
Spitzer Science Center
H. Nomura
Kyoto University
E. Pantin
Astrophysique, Instrumentation et Modelisation de Paris-Saclay
I. Pascucci
Universidad Autonoma de Madrid (UAM)
N. Phillips
University of Edinburgh
L. Podio
University of Groningen
D. R. Poelman
University of St Andrews
S. Ramsay
European Southern Observatory (ESO)
K. Rice
Royal Observatory
P. Riviere-Marichalar
Centro de Astrobiologia (CAB)
E. Solano
Spanish Virtual Observatory
Centro de Astrobiologia (CAB)
I. Tilling
University of Edinburgh
H. Walker
STFC Rutherford Appleton Laboratory
G. J. White
STFC Rutherford Appleton Laboratory
Open University
G. Wright
University of Edinburgh
Astronomy and Astrophysics
0004-6361 (ISSN) 1432-0746 (eISSN)
Vol. 518 Article Number: L127 L127Subject Categories (SSIF 2011)
Astronomy, Astrophysics and Cosmology
DOI
10.1051/0004-6361/201014595