Active late-type stars and the applicability of coronal loop models

Details Active late-type stars and the applicability of coronal loop models Active late-type stars and the applicability of coronal loop models

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2349..454g&link_type=abstract

In NASA. Goddard Space Flight Center Future of Ultraviolet Astronomy Based on Six Years of IUE Res. p 454-457 (SEE N85-20961 1

Astronomy and Astrophysics

Astronomy

Coronal Loops, Stars, Stellar Atmospheres, Stellar Models, Heao 2, Iue, Stellar Magnetic Fields, Sun, Ultraviolet Astronomy, X Ray Astronomy

Scientific paper

Far ultraviolet IUE observations of a sample of solar type stars were combined with existing soft X-ray measurements obtained by HEAO B. The resulting data set was utilized and a new coronal loop model numerical code was developed to perform a preliminary investigation of the applicability of coronal loop models to solar-type stars. Reasonable agreement was found to exist between the predictions of single-component coronal loop model atmospheres. It was demonstrated that semi-empirical, coronal loop models can be applied to account for observed stellar transition region and coronal emission. This result is corroborative evidence for the presence of magnetic field structures analogous to solar coronal loops on the surfaces of solar-type stars. It is suggested that stellar transition region emission arises predominantly from the base of quiescent coronal loop configurations.

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