Detection of the Water Reservoir in a Forming Planetary System

Details Detection of the Water Reservoir in a Forming Planetary System Detection of the Water Reservoir in a Forming Planetary System

2011-10-20

arxiv.org/abs/1110.4600v2

Science 6054 (2011), 338

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

18 pages, 2 figures. Corrected typo in reported mass (in g) of detected water vapor reservoir. All conclusions are unchanged

Scientific paper

Icy bodies may have delivered the oceans to the early Earth, yet little is known about water in the ice-dominated regions of extra-solar planet-forming disks. The Heterodyne Instrument for the Far-Infrared on-board the Herschel Space Observatory has detected emission from both spin isomers of cold water vapor from the disk around the young star TW Hydrae. This water vapor likely originates from ice-coated solids near the disk surface hinting at a water ice reservoir equivalent to several thousand Earth Oceans in mass. The water's ortho-to-para ratio falls well below that of Solar System comets, suggesting that comets contain heterogeneous ice mixtures collected across the entire solar nebula during the early stages of planetary birth.

Affiliated with

Also associated with

No associations

Rating

Detection of the Water Reservoir in a Forming Planetary System 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 Detection of the Water Reservoir in a Forming Planetary System, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of the Water Reservoir in a Forming Planetary System will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-552565