Discovery of Hα satellite emission in a low state of the SW Sextantis star BB Doradus

Bibcode
2012MNRAS.422..731S
DOI
10.1111/j.1365-2966.2012.20653.x
Schmidtobreick, L.; Rodríguez-Gil, P.; Long, K. S.; Gänsicke, B. T.; Tappert, C.; Torres, M. A. P.
Referencia bibliográfica

Monthly Notices of the Royal Astronomical Society, Volume 422, Issue 1, pp. 731-737.

Fecha de publicación:
5
2012
Revista
Monthly Notices of the Royal Astronomical Society
Número de autores
6
Número de autores del IAC
1
Número de citas
12
Número de citas referidas
10
Descripción
BB Dor was observed during its low state in 2009. Signatures of both binary components are revealed in the average optical spectrum; no signature of accretion is observed. Narrow emission lines of Hα, He I and Na D, as well as TiO absorption troughs, trace the motion of the irradiated secondary star. We detect two additional components in the Hα emission line that share many characteristics of similar 'satellite' lines observed in the low state of magnetic cataclysmic variables of AM Her type. It is the first time such emission components are detected for an SW Sex star.
Proyectos relacionados
Representación de la variable cataclísmica SS Cygni (Chris Moran)
Estrellas Binarias
El estudio de las estrellas binarias es una parte esencial de la astrofísica estelar. Una gran parte de las estrellas de nuestra Galaxia y de otras galaxias se ha formado en sistemas binarios o múltiples, por lo que entender la estructura y evolución de estos sistemas es importante desde el punto de vista estelar y galáctico. Un aspecto en el que
Pablo
Rodríguez Gil
En ejecución
Tipo
Con árbitro
Física estelar e interestelar (FEEI)
Acreción
Campos magnéticos
Novae

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