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Astron. Astrophys. Suppl. Ser.
Volume 127, Number 2, January II 1998
Page(s) 251 - 255
DOI: 10.1051/aas:1998347

A&A Supplement series, Vol. 127, January II 1998, 251-255

Received March 26; accepted May 5, 1997

The ROSAT all-sky survey catalogue of optically bright late-type giants and supergiantsgif

M. Hünsch tex2html_wrap512 - J.H.M.M. Schmitt tex2html_wrap514 - W. Voges tex2html_wrap514

Send offprint request: M. Hünsch, e-mail:

tex2html_wrap518  Max-Planck-Institut für Extraterrestrische Physik, Giessenbachstr., 85740 Garching, Germany
tex2html_wrap520  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

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