GAS in Protoplanetary Systems (GASPS) I. First results
Artikel i vetenskaplig tidskrift, 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.

herbig-ae

young stars

eta-chamaeleontis cluster

protoplanetary disks

fine-structure lines

stars: pre-main sequence

emission

mass-loss

disk

tw-hydrae

mu-m

iso-lws

infrared: stars

Författare

G. S. Mathews

University of Hawaii

W. R. F. Dent

Atacama Large Millimeter-submillimeter Array (ALMA)

European Southern Observatory Santiago

J. P. Williams

University of Hawaii

C. D. Howard

NASA Ames Research Center

G. Meeus

Universidad Autonoma de Madrid (UAM)

B. Riaz

Space Telescope Science Institute (STScI)

A. Roberge

NASA Goddard Space Flight Center

G. Sandell

NASA Ames Research Center

B. Vandenbussche

KU Leuven

G. Duchene

University of California

Université Grenoble Alpes

I. Kamp

Rijksuniversiteit Groningen

F. Menard

Université Grenoble Alpes

B. Montesinos

Centro de Astrobiologia (CAB)

C. Pinte

University of Exeter

Université Grenoble Alpes

W. F. Thi

Royal Observatory

Université Grenoble Alpes

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

CalTech

G. Aresu

Rijksuniversiteit Groningen

J. C. Augereau

Université Grenoble Alpes

D. Barrado

Calar Alto Astronomical Observatory

Centro de Astrobiologia (CAB)

S. Brittain

Clemson University

D. R. Ciardi

National Aeronautics and Space Administration

W. Danchi

NASA Goddard Space Flight Center

C. Eiroa

Universidad Autonoma de Madrid (UAM)

D. Fedele

Johns Hopkins University

Max Planck-institutet

Universidad Autonoma de Madrid (UAM)

C. A. Grady

NASA Goddard Space Flight Center

I. de Gregorio-Monsalvo

Atacama Large Millimeter-submillimeter Array (ALMA)

European Southern Observatory Santiago

A. Heras

European Space Astronomy Centre (ESA)

N. Huelamo

Rijksuniversiteit Groningen

A. Krivov

Friedrich-Schiller-Universität Jena

J. Lebreton

KU Leuven

René Liseau

Chalmers, Rymd- och geovetenskap, Radioastronomi och astrofysik

C. Martin-Zaidi

KU Leuven

I. Mendigutia

Centro de Astrobiologia (CAB)

A. Mora

European Space Astronomy Centre (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

Rijksuniversiteit 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

Rutherford Appleton Laboratory

G. J. White

Rutherford Appleton Laboratory

Open University

G. Wright

University of Edinburgh

Astronomy and Astrophysics

0004-6361 (ISSN) 1432-0746 (eISSN)

Vol. 518 Article Number: L127 L127

Ämneskategorier

Astronomi, astrofysik och kosmologi

DOI

10.1051/0004-6361/201014595

Mer information

Senast uppdaterat

2018-05-29