Details

Autor(en) / Beteiligte

• Snow, Theodore P., Jr
• Buss, Richard H., Jr
• Gilra, D. P.
• Swings, J. P.

Titel

Extinction and abundance properties of Alpha Scorpii circumstellar grains

Ist Teil von

• The Astrophysical journal, 1987-10, Vol.321, p.921

Ort / Verlag

Legacy CDMS

Erscheinungsjahr

1987

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• The UV extinction and element depletions in the circumstellar envelope Alpha Sco are investigated using IUE, Copernicus, and AS data of Alpha Sco B which can be seen in absorption through the cool-star envelope. The circumstellar reddening, depletions, and spectral extinction toward Alpha Sco B are estimated. Evidence is presented which suggests that the circumstellar grains are large and siliceous.