A&A Supplement series, Vol. 127, January II 1998, 251-255
Received March 26; accepted May 5, 1997
M. Hünsch - J.H.M.M. Schmitt - W. Voges
Send offprint request: M. Hünsch, e-mail: email@example.com
Max-Planck-Institut für Extraterrestrische Physik, Giessenbachstr., 85740 Garching, Germany
Hamburger Sternwarte, Gojenbergsweg 112, 21029 Hamburg, Germany
We present X-ray data for all late-type (A, F, G, K, M) giants and supergiants (luminosity classes I to III-IV) listed in the Bright Star Catalogue that have been detected in the ROSAT all-sky survey. Altogether, our catalogue contains 450 entries of X-ray emitting evolved late-type stars, which corresponds to an average detection rate of about 11.7 percent. The selection of the sample stars, the data analysis, the criteria for an accepted match between star and X-ray source, and the determination of X-ray fluxes are described.
keywords: stars: activity -- stars: coronae -- stars: late-type -- X-rays: stars -- catalogs