Simultaneous x-ray and photometric observations of the flare star YZ CMi

  • J. G. Doyle
  • C. J. Butler
Session III: Small Scale Atmosphere Structures: Data
Part of the Lecture Notes in Physics book series (LNP, volume 254)


Broad-band photometric observations of YZ CMi show a 1.2 magnitude U-band flare, however, simultaneous X-ray observations from EXOSAT show no detectable increase. It is suggested that the energy was dissipated before reaching the corona. Two long duration U-band enhancements detected during the optical monitoring may have been the result of back-heating from an enhanced coronal X-ray flux.


Photometric Data Photometric Observation Flare Star Flare Energy Channel Photometer 
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Copyright information

© Springer-Verlag 1986

Authors and Affiliations

  • J. G. Doyle
    • 1
  • C. J. Butler
    • 1
  1. 1.Armagh ObservatoryArmaghN. Ireland

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