Submm emission from low mass stars.

Details Submm emission from low mass stars. Submm emission from low mass stars.

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esoc...33..173c&link_type=abstract

ESO Workshop on Low Mass Star Formation and Pre-Main Sequence Objects, p. 173 - 189

Computer Science

1

Sub-Mm Radiation: Low-Mass Stars, Sub-Mm Radiation: T Tauri Stars, Sub-Mm Radiation: Circumstellar Dust, Sub-Mm Radiation: Pre-Main-Sequence Stars, Circumstellar Grains: Pre-Main-Sequence Stars

Scientific paper

Submm continuum observations of 87 pre-main sequence stars in the Taurus-Auriga dark clouds and of 4 nearby main sequence stars provide evidence for emission from circumstellar dust grains. 42% of the T Tauri stars could be detected at 1300 μm with a surprisingly high fraction of weak-line and "naked" objects, indicating that they also are surrounded by circumstellar matter. Most probably, the dust grains are concentrated in spatially thin, circumstellar disks with total masses between 0.001 and 1 Msun. Spectral indices for several T Tauri stars between 1.3 and 2.7 mm suggest a linear dependence of dust opacity with frequency; particle growth might explain this result. Clear evidence for larger than normal dust grains in circumstellar disks also comes from 870 and 1300 μm observations of 4 main sequence stars: their disk masses are of order 10-6Msun with particle sizes between 10 μm and 1 cm. Because the submm observations are insensitive to even larger dust conglomerates it might well be that the decrease of disk mass in these older stars compared to the circumstellar material seen in pre-main sequences stars is due to the formation of planets.

Affiliated with

Also associated with

No associations

Rating

Submm emission from low mass stars. 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 Submm emission from low mass stars., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Submm emission from low mass stars. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-765061