INVESTIGADORES
VENERO Roberto Oscar JosÉ
congresos y reuniones científicas
Título:
The enigmatic wind of 55 Cygni.
Autor/es:
HAUCKE, M.; KRAUS, M.; VENERO, R.; CIDALE, L.; NICKELER, D. H.; TOMIC, S.; CURÉ, M.
Lugar:
Tandil
Reunión:
Congreso; 56° Reunión Anual de la Asociación Argentina de Astronomía; 2013
Institución organizadora:
IAFE
Resumen:
Abstract. The early B-type supergiant 55 Cyg exhibits variations in its P-Cygni line profiles (mainly in Hα and Hβ) 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 Ondˇrejov (Czech Republic). In this work we show a sample of Hα line profiles which were modeled using the FASTWIND code. We discuss the derived wind parameters and the possible mechanisms driving this variable wind.
