Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ap%26ss..69..295g&link_type=abstract
Astrophysics and Space Science, vol. 69, no. 2, May 1980, p. 295-318. Translation.
Astronomy and Astrophysics
Astrophysics
3
Hot Stars, Stellar Envelopes, Stellar Spectra, Ultraviolet Spectra, A Stars, Astrophysics, B Stars, Continuous Radiation, Photosphere
Scientific paper
The paper demonstrates that the observed variety in macrostructures of continuous spectra in the ultraviolet range of hot stars results from the circumstellar clouds around such stars. A method for calculating synthetic spectra, originating as a result of passage of central star photospheric radiation through its own circumstellar cloud, is developed; a method is recommended for the determination of spectral class for the circumstellar cloud which depends on the spectral class of the central star and the cloud parameters. Calculations of synthetic spectra for four combinations of a 'star-cloud' system and relationships for the determination of cloud power by observed parameters of synthetic spectra are presented; they establish an understanding of the nature of circumstellar clouds, indicating that selective absorption in such clouds stimulates resonance lines only, the largest number of which lie in the 2100-2600 A ultraviolet region.
Gurzadian Grigor A.
Rustambekova S. S.
No associations
LandOfFree
Circumstellar clouds derived from ultraviolet stellar spectra 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 Circumstellar clouds derived from ultraviolet stellar spectra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circumstellar clouds derived from ultraviolet stellar spectra will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1358823