The remarkable extent of the circumstellar gas shell surrounding Betelgeuse.
Abstract
A two-dimensional television system has been used to study the spatial extent of the K I 7699-A resonance-line emission from the gas shell surrounding the M supergiant Betelgeuse. This emission has been traced out to a minimum radius of 29 arcsec (about 600 stellar radii).
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1978
- DOI:
- 10.1086/155810
- Bibcode:
- 1978ApJ...219..532B
- Keywords:
-
- M Stars;
- Red Giant Stars;
- Stellar Envelopes;
- Supergiant Stars;
- Graphs (Charts);
- Line Spectra;
- Spatial Distribution;
- Stellar Spectra;
- Stellar Spectrophotometry;
- Astrophysics;
- Circumstellar Shells:M Supergiants;
- Circumstellar Shells:Resonance Lines