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Doppler imaging of V404 Cyg in Quiescence

  • Jorge Casares
Part of the Astrophysics and Space Science Library book series (ASSL, volume 208)

Abstract

We present Doppler images of the accretion disc in the black hole X-ray transient V404 Cyg during its quiescent phase. The Hα map shows evidence for a hot spot, indicating that mass transfer is continuing long after the 1989 outburst. Both the Hα and the IR CanII emission maps exhibit intense bright spots at the position of the secondary star, which we take as a sign of chromospheric activity. The CanII emission arises from the outer parts of the accretion disc, and its surface brightness distribution is consistent with dwarf novae discs (IR -3/2).

Keywords

Black Hole Accretion Disc Radial Velocity Curve Quiescent Phase Secondary Star 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • Jorge Casares
    • 1
  1. 1.Department of Physics, Nuclear Physics LaboratoryUniversity of OxfordOxfordUK

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