Computer Science
Scientific paper
Jan 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cokon.103..103r&link_type=abstract
Communications of the Konkoly Observatory, Hungary Proceedings of the conference: 'The interaction of stars with their environme
Computer Science
Scientific paper
We investigate the interaction of an external UV radiation field with protostellar disks of low-mass stars using 2D radiation hydrodynamical simulations. The disks are gradually destroyed via photoevaporation as the UV photons heat the gas in the outer layers of a disk to thermal escape velocities. Beside the UV flux and the luminosity of the stellar wind from the central star, the evolutionary state of the star-disk system at the onset of the external illumination determines the size and the form of the ionized envelope and the resulting spectral appearance of the object. Disks irradiated before one free-fall time after the collapse of the parental molecular cloud lose much of the associated material during the first 104yr of evolution. The star-disk systems remain extremely small in comparison to star-disk systems first irradiated at later evolutionary phases, where the central objects are more massive and much of the clouds mass is already bound in the accretion disk. These results suggest that an early UV illumination favors the formation of low-mass cluster members.
Richling Sabine
Yorke Harold W.
No associations
LandOfFree
The Influence of External UV Radiation on the Evolution of Protostellar Disks 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 The Influence of External UV Radiation on the Evolution of Protostellar Disks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Influence of External UV Radiation on the Evolution of Protostellar Disks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1526472