Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...321..921s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 321, Oct. 15, 1987, p. 921-936.
Astronomy and Astrophysics
Astrophysics
34
Abundance, Binary Stars, Interstellar Matter, M Stars, Stellar Envelopes, Supergiant Stars, Hydrogen, Interstellar Extinction, Iue, Spectral Resolution, Stellar Spectrophotometry, Ultraviolet Spectra
Scientific paper
The authors have investigated the ultraviolet extinction and element depletions in the circumstellar envelope of the M supergiant binary system, α Sco, by using IUE, Copernicus, and ANS data of the B dwarf companion, α Sco B, which can be seen in absorption through the cool-star envelope. After assessing the interstellar, circumstellar, and atmospheric column densities toward α Sco B, the authors estimated the circumstellar reddening, the circumstellar depletions, and the circumstellar spectral extinction toward α Sco B. It is found that the circumstellar grains in this oxygen-rich environment are larger than 0.05 μm and siliceous in composition, yet contain less depleted elements than the diffuse-interstellar grains in the Scorpius region or the general Galactic diffuse-interstellar grains.
Buss Richard H. Jr.
Gilra Daya P.
Snow Theodore P. Jr.
Swings Jean Pierre
No associations
LandOfFree
Extinction and abundance properties of Alpha Scorpii circumstellar grains 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 Extinction and abundance properties of Alpha Scorpii circumstellar grains, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extinction and abundance properties of Alpha Scorpii circumstellar grains will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1773774