Optically thin dust models for IRAS point sources

Details Optically thin dust models for IRAS point sources Optically thin dust models for IRAS point sources

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aj....102..658m&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 102, Aug. 1991, p. 658-665.

Astronomy and Astrophysics

Astronomy

5

B Stars, H Ii Regions, Infrared Astronomy Satellite, O Stars, Stellar Models, Stellar Spectra, Black Body Radiation, Color-Color Diagram, Cosmic Dust, Optical Thickness

Scientific paper

A simple optically thin model is derived to explain the range of infrared spectra of the IRAS point sources. It is found that a model with a stellar source ata the center of a small (less than 1-2 pc in radius) dust cloud, where the average temperature of the cloud is varied, can account for the range of IRAS spectral shapes. In this model, a power-law dependence on radius is assumed for both temperature and dust density. Models have been produced for clouds with gas densities of n(H2) about 100-1,000,000/cu cm and masses of about 100-10,000 solar masses. Also, a variety of different types of dust were used to determine their importance. The results are in agreement with Natta and Panagia (1976), that the model is sensitive to the dust type. The model predicts that most of the IRAS sources with a rising spectrum from 12 to 100 microns are O or B type stars.

Affiliated with

Also associated with

No associations

Rating

Optically thin dust models for IRAS point sources 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 Optically thin dust models for IRAS point sources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optically thin dust models for IRAS point sources will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1724814