Millimeter continuum measurements of circumstellar dust around very young low-mass stars

Details Millimeter continuum measurements of circumstellar dust around very young low-mass stars Millimeter continuum measurements of circumstellar dust around very young low-mass stars

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.212..191t&link_type=abstract

Astrophysics and Space Science, vol. 212, nos. 1-2, p. 191-195

Astronomy and Astrophysics

Astrophysics

Accretion Disks, Cosmic Dust, Millimeter Waves, Protostars, Stellar Envelopes, Continuous Spectra, Early Stars, Stellar Models, T Tauri Stars

Scientific paper

We investigate the question of disk formation during the protostar phase. We build on the results of Keene and Masson (1990) whose analysis of L1551 showed the millimeter continuum emission comes from both an unresolved circumstellar component, i.e., a disk and an extended cloud core. We model the dust continuum emission from the cloud core and show how it is important at 1.3 mm but negligible at 2.7 mm. Combining new 2.7 mm Owens Valley Interferometer data of IRAS-Dense cores with data from the literature we conclude that massive disks are also seen toward a number of other sources. However, 1.3 mm data from the IRAM 30 m telescope for a larger sample shows that massive disks are relatively rare, occurring around perhaps 5% of young embedded stars. This implies that either massive disks occur briefly during the embedded phase or that relatively few young stars form massive disks. At 1.3 mm the median flux of IRAS-Dense cores is nearly the same as T Tauri stars in the sample of Beckwith et al. (1990). We conclude that the typical disk mass during the embedded phase is nearly the same or less than the typical disk mass during the T Tauri phase.

Affiliated with

Also associated with

No associations

Rating

Millimeter continuum measurements of circumstellar dust around very young 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 Millimeter continuum measurements of circumstellar dust around very young low-mass stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Millimeter continuum measurements of circumstellar dust around very young low-mass stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1013765