The spectroscopic variability of He I emission line in AB Aurigae
Abstract
We performed the spectroscopic observations for He I 5876ρA line in the Herbig Ae star AB Aurigae with the Bisei Astronomical Observatory (BAO) 1.01-m telescope during three years from 1998 to 2000. The profiles of He I line showed the strong variability, which consisted of the blue and the red shifted components with periods of 35 hrs and 46 hrs, respectively. We suggest that the blue shifted component is generated near the stellar surface in the base of the stellar wind.
- Publication:
-
Astrophysics and Space Science Library
- Pub Date:
- 2003
- DOI:
- 10.1007/978-94-017-0403-8_49
- Bibcode:
- 2003ASSL..298..305K
- Keywords:
-
- Herbig Ae/Be Stars;
- Chromosphere