X-ray coronae of late type stars: Theoretical implications

Details X-ray coronae of late type stars: Theoretical implications X-ray coronae of late type stars: Theoretical implications

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984xras.rept....1s&link_type=abstract

In its Contrib. of the X-Ray Astron. Group p 1-6 (SEE N85-20952 11-89)

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1

Late Stars, Stellar Coronas, Stellar Spectra, X Ray Spectra, Astronomical Models, Heao 2, X Ray Sources

Scientific paper

Einstein Observatory evidence for the ubiquity of coronae in late type stars is reviewed. The observed X-ray activity can be interpreted and understood in terms of models originally developed in the solar context. The existence of a corona seems to be linked to the existence of a subphotospheric convection zone; the hypothesis is that loop-like structures, as seen in the coronae of other stars is consistent with X-ray spectra. However, multicomponent IPC pulse height spectra are shown not to necessarily indicate the presence of physically distinct X-ray emitting structures, and structures containing emission measured at various temperatures such as loops may also account for the observed multicomponent X-ray spectra.

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