The peculiar B E star MWC 623 : a binary system with a Li-rich K star.
Abstract
Spectra of high resolution showed the presence of an early-type (≍B2) and a late-type (≍K2) component in the B[e] star MWC623. From absorption-line strengths a lower limit of the luminosity class for the K star of LC II was derived assuming the B star to be a main-sequence object. The very strong line of LiIλ6708 suggests that the system is not old enough to have nearly all lithium diluted in the K component as observed in most K giants.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- October 1989
- Bibcode:
- 1989A&A...223..165Z
- Keywords:
-
- B Stars;
- Binary Stars;
- K Stars;
- Metallic Stars;
- Peculiar Stars;
- Absorption Spectra;
- Line Spectra;
- Lithium;
- Spectral Energy Distribution;
- Stellar Envelopes;
- Stellar Luminosity;
- Astrophysics