The relation between RS CVn and Algol

  title={The relation between RS CVn and Algol},
  author={Douglas S. Hall},
  journal={Space Science Reviews},
  • D. S. Hall
  • Published 1 June 1989
  • Physics
  • Space Science Reviews
Late-type secondaries in Algol binaries are rapidly rotating convective stars and thus should be chromospherically active (CA). They are examined with respect to observational manifestations which characterize already known CA stars: Ca II H and K emission cores, photometric variability attributable to starspots, soft x-ray emission, non-thermal radio emission, ultraviolet and infrared excess, and alternating period changes. The conclusion is that they can be regarded as another class of CA… 
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