Composition of Ices in Low-Mass Extrasolar Planets

Details Composition of Ices in Low-Mass Extrasolar Planets Composition of Ices in Low-Mass Extrasolar Planets

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.1110m&link_type=abstract

American Astronomical Society, DPS meeting #40, #11.10; Bulletin of the American Astronomical Society, Vol. 40, p.403

Astronomy and Astrophysics

Astronomy

Scientific paper

We study the formation conditions of icy planetesimals in protoplanetary disks in order to determine the composition of ices in small and cold extrasolar planets. Assuming that ices are formed from hydrates, clathrates, and pure condensates, we calculate their mass fractions with respect to the total quantity of ices included in planetesimals, for a grid of disk models. We find that the composition of ices weakly depends on the adopted disk thermodynamic conditions, and is rather influenced by the initial composition of the gas phase. The use of a plausible range of molecular abundance ratios and the variation of the relative elemental carbon over oxygen ratio in the gas phase of protoplanetary disks, allow us to apply our model to a wide range of planetary systems. Our results can thus be used to constrain the icy/volatile phase composition of cold planets evidenced by microlensing surveys, hypothetical ocean-planets and carbon planets, which could be detected by Corot or Kepler.

Affiliated with

Also associated with

No associations

Rating

Composition of Ices in Low-Mass Extrasolar Planets 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 Composition of Ices in Low-Mass Extrasolar Planets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition of Ices in Low-Mass Extrasolar Planets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1436558