The enigmatic wind of 55 Cygni
Abstract
The early B-type supergiant 55 Cyg exhibits variations in its P-Cygni line profiles (mainly in H and H) related to the presence of a strong variable stellar wind. To study this variability we have started a spectroscopic observing campaign at the Observatory of Ondrejov (Czech Republic). In this work we show a sample of H line profiles which were modeled using the FASTWIND code. We discuss the derived wind parameters and the possible mechanisms driving this variable wind.
- Publication:
-
Boletin de la Asociacion Argentina de Astronomia La Plata Argentina
- Pub Date:
- 2013
- Bibcode:
- 2013BAAA...56..191H