AG Dra a Symbiotic Star with an Uncommon Cool Component

  • M. Friedjung
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 145)


AG Dra is probably a metal poor symbiotic binary of the galactic halo. The luminosity of the cool component is uncertain, which contributes to doubts about the correct model. Behaviour in activity is non classical with high ionization emission lines still having been seen then in the spectrum. This may perhaps most easily be explained by a weak thermonuclear event.


Radial Velocity White Dwarf Ultraviolet Spectrum Roche Lobe Galactic Halo 
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Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • M. Friedjung
    • 1
  1. 1.Institut d’AstrophysiqueParisFrance

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