Chemical changes during transport from cloud to disk

Details Chemical changes during transport from cloud to disk Chemical changes during transport from cloud to disk

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..251..111v&link_type=abstract

Organic Matter in Space, Proceedings of the International Astronomical Union, IAU Symposium, Volume 251, p. 111-116

Astronomy and Astrophysics

Astronomy

Planetary Systems: Protoplanetary Disks, Circumstellar Matter, Stars: Formation, Astrochemistry

Scientific paper

We present the first semi-analytical model that follows the chemical evolution during the collapse of a molecular cloud and the formation of a low-mass star and the surrounding disk. It computes infall trajectories from any starting point in the cloud and it includes a full time-dependent treatment of the temperature structure. We focus here on the freeze-out and desorption of CO and H2O. Both species deplete towards the centre before the collapse begins. CO evaporates during the infall phase and re-adsorbs when it enters the disk. H2O remains in the solid phase everywhere, except within a few AU of the star. Material that ends up in the planet- and comet-forming zones is predicted to spend enough time in a warm zone during the collapse to form complex organic species.

Affiliated with

Also associated with

No associations

Rating

Chemical changes during transport from cloud to disk 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 Chemical changes during transport from cloud to disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemical changes during transport from cloud to disk will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1702908