Gas in Protoplanetary Discs (GASPS) 1. First results

Details Gas in Protoplanetary Discs (GASPS) 1. First results Gas in Protoplanetary Discs (GASPS) 1. First results

2010-05-21

arxiv.org/abs/1005.3864v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Comments: 5 pages, 2 Postscript figures, accepted for publication in the A&A Herschel special issue

Scientific paper

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.

Affiliated with

Also associated with

No associations

Rating

Gas in Protoplanetary Discs (GASPS) 1. First results does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gas in Protoplanetary Discs (GASPS) 1. First results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas in Protoplanetary Discs (GASPS) 1. First results will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-338659