The analysis of the ROSAT PSPC pointed data from 1990-1994 has yielded a catalogue of 758 discrete sources in an area of 58.6 square degrees. This is a factor of 3.5 more than found in the same area from the all-sky survey (Pietsch & Kahabka 1993) where the exposure quickly decreased with distance from the south ecliptic pole.
First cross-correlations with SIMBAD have resulted in about 140 identifications with objects of known nature partially only based on positional coincidence. The number of known objects in different source classes like SNRs, SSSs, X-ray binaries, foreground stars and background extragalactic objects are sufficiently high to derive criteria for a classification scheme. Using a preliminary scheme and additional information about time variability of sources in the PSPC catalogue Haberl & Pietsch (1999) already proposed several new candidates for X-ray binaries and supersoft sources in the LMC. In this paper a very restrictive hardness ratio classification scheme was used, resulting in promising new candidates for SNRs, SSS, X-ray binaries, background objects and foreground stars useful for follow-up studies to identify the X-ray sources.
AcknowledgementsThe ROSAT project is supported by the German Bundesministerium für Bildung und Forschung (BMBF/DLR) and the Max-Planck-Gesellschaft. This research has made extensive use of the SIMBAD data base operated at CDS, Strasbourg, France.
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