The ROSAT all-sky survey catalogue of the nearby stars ^*

¹ Institut für Theoretische Physik und Astrophysik, Universität Kiel, Olshausenstrasse 40, 24118 Kiel, Germany
² Hamburger Sternwarte, Universität Hamburg, Gojenbergsweg 112, 21029 Hamburg, Germany
³ Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, 85740 Garching, Germany
⁴ European Southern Observatory, Casilla 19001, Santiago 19, Chile

Send offprint request to: M. Hünsch

Received: 16 October 1998
Accepted: 16 November 1998

Abstract

We present X-ray data for all entries of the Third Catalogue of Nearby Stars (Gliese & Jahreiß 1991) that have been detected as X-ray sources in the ROSAT all-sky survey. The catalogue contains 1252 entries yielding an average detection rate of 32.9 percent. In addition to count rates, source detection parameters, hardness ratios, and X-ray fluxes we also list X-ray luminosities derived from Hipparcos parallaxes.