Coronal ejection and heating in variable-luminosity X-ray sources

  title={Coronal ejection and heating in variable-luminosity X-ray sources},
  author={W. Kluźniak},
  journal={Proceedings of the International Astronomical Union},
  pages={49 - 52}
  • W. Kluźniak
  • Published 2012
  • Physics
  • Proceedings of the International Astronomical Union
Abstract A sudden increase in stellar luminosity may lead to the ejection of a large part of any optically thin gas orbiting the star. Test particles in circular orbits will become unbound, and will escape to infinity (if radiation drag is neglected), when the luminosity changes from zero to at least one half the Eddington value, or more generally, from L to (LEdd+L)/2 or more. Conversely, a decrease in luminosity will lead to the tightening of orbits of optically thin fluid. Even a modest… Expand


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