On the Alpha Orionis Triple System
Abstract
Detection of two close optical companions to the red supergiant α Ori was accomplished in 1983 November on the Steward Observatory 2.25 m telescope. A new two-dimensional photon counting camera was used for data recording, and speckle imaging was used for image reconstruction. The closer of the two sources is located at 0arcsec.06±0arcsec.01 from α Ori (P.A. = 273°), the more distant at 0arcsec.51±0arcsec.01 (P.A. = 278°). An analysis of these results and of earlier polarization data favors an interpretation in which the two optical sources are stellar companions to α Ori.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 1986
- DOI:
- 10.1086/164497
- Bibcode:
- 1986ApJ...308..260K
- Keywords:
-
- Companion Stars;
- Image Reconstruction;
- Red Giant Stars;
- Supergiant Stars;
- Interferometry;
- Periodic Variations;
- Polarization (Waves);
- Speckle Patterns;
- Stellar Envelopes;
- Stellar Magnitude;
- Stellar Orbits;
- Astrophysics;
- INTERFEROMETRY;
- STARS: INDIVIDUAL CONSTELLATION NAME: ALPHA ORIONIS;
- STARS: VISUAL MULTIPLES