Circumstellar Material around lambda Eridani (B2e). I. Geometry and Kinematics during 1987--1988
Abstract
The kinematics of the circumstellar material around Lambda Eri during a five-month emission outburst in 1987-1988 are investigated using CCD observations. A simple kinematical picture is described, and a mean distance for the H-alpha emitting material, best described as a detached ring around the star, is estimated. The relation of this material to the He I 6678 A transients is explored.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1991
- DOI:
- 10.1086/169629
- Bibcode:
- 1991ApJ...367..302S
- Keywords:
-
- B Stars;
- Charge Coupled Devices;
- H Alpha Line;
- Stellar Envelopes;
- Ultraviolet Spectra;
- Gas Dynamics;
- Line Of Sight;
- Stellar Orbits;
- Vertical Motion;
- Astrophysics;
- STARS: BE;
- STARS: CIRCUMSTELLAR SHELLS;
- STARS: INDIVIDUAL CONSTELLATION NAME: LAMBDA ERIDANI;
- ULTRAVIOLET: SPECTRA