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

Te puede interesar

  • Con árbitro
    An ultra-short-period super-Earth with an extremely high density and an outer companion
    We present the discovery and characterization of a new multi-planetary system around the Sun-like star K2-360 (EPIC 201595106). K2-360 was first identified in K2 photometry as the host of an ultra-short-period (USP) planet candidate with a period of 0.88 d. We obtained follow-up transit photometry, confirming the star as the host of the signal
    Livingston, John H. et al.

    Fecha de publicación:

    11
    2024
    Bibcode
    2024NatSR..1427219L
    Número de citas
    0
  • Con árbitro
    Dehydrogenation, polymerization and self-assembly in the inhibition of copper surfaces by an ultrathin imidazole film
    Here we present a joint experimental-theoretical study on the deposition of imidazole molecules on a Cu(100) surface. X-ray photoelectron spectroscopy (XPS) and Surface-enhanced Raman spectroscopy (SERS) have been carried out on samples prepared upon deposition of sublimated imidazole molecules in ultra-high vacuum (UHV). Computational studies
    Barzaga, R. et al.

    Fecha de publicación:

    7
    2024
    Bibcode
    2024Corro.23512168B
    Número de citas
    0
  • Con árbitro
    Constraints on VHE gamma-ray emission of flat spectrum radio quasars with the MAGIC telescopes
    Flat spectrum radio quasars (FSRQs) constitute a class of jetted active galaxies characterized by a very luminous accretion disc, prominent and rapidly moving line-emitting cloud structures (broad-line region, BLR), and a surrounding dense dust structure known as dusty torus. The intense radiation field of the accretion disc strongly determines the
    Abe, S. et al.

    Fecha de publicación:

    12
    2024
    Bibcode
    2024MNRAS.535.1484A
    Número de citas
    0