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Exosat Observations of Quiescent and Flaring Emission from M Dwarf Flare Stars

  • R. Pallavicini
Part of the Astrophysics and Space Science Library book series (ASSL, volume 143)

Abstract

We present preliminary results of a comprehensive survey of X-ray observations of M dwarf flare stars obtained with the EXOSAT satellite. We discuss quiescent and flaring emission, and we provide evidence for the occurrence on stars of both short-lived and long-duration events, closely resembling compact and 2-ribbon flares on the Sun. We study time variability of these sources on a variety of time scales and we conclude that there is no observational evidence in EXOSAT data for continuous low-level microflaring activity of the type recently suggested as a mechanism of coronal heating in M dwarf flare stars.

Keywords

Variability Analysis Coronal Heating Flare Star Flaring Emission Exponential Decay Time 
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 1988

Authors and Affiliations

  • R. Pallavicini
    • 1
  1. 1.Osservatorio Astrofisico di ArcetriFirenzeItaly

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