Effects of dust on equivalent widths of spectral lines formed in expanding spherically symmetric shells

Details Effects of dust on equivalent widths of spectral lines formed in expanding spherically symmetric shells Effects of dust on equivalent widths of spectral lines formed in expanding spherically symmetric shells

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990basi...18...17p&link_type=abstract

Astronomical Society of India, Bulletin (ISSN 0304-9523), vol. 18, Mar.-June 1990, p. 17-32.

Astronomy and Astrophysics

Astronomy

Cosmic Dust, Radiative Transfer, Spectral Line Width, Stellar Envelopes, Absorption Spectra, Albedo, Atomic Energy Levels, Spherical Shells

Scientific paper

A study is made of the effects of the presence of dust and radial expansion of the spherical shells around stars on the equivalent widths of the lines formed in such shells. A non-LTE, two-level atom approximation is considered, and it is assumed that the dust scatters isotropically; 30 shells and an optical depth of 300 are considered. Two types of expanding shells are treated: with velocity gradients and without velocity gradients. Depending upon the parameters used, the equivalent widths change considerably.

Affiliated with

Also associated with

No associations

Rating

Effects of dust on equivalent widths of spectral lines formed in expanding spherically symmetric shells 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 Effects of dust on equivalent widths of spectral lines formed in expanding spherically symmetric shells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effects of dust on equivalent widths of spectral lines formed in expanding spherically symmetric shells will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1886897