SIMBAD references

2000A&AS..147...75S - Astron. Astrophys., Suppl. Ser., 147, 75-91 (2000/November-2)

ROSAT HRI catalogue of X-ray sources in the SMC region.


Abstract (from CDS):

During the operational phase of the ROSAT satellite between 1990 and 1998 the X-ray telescope pointed 71 times to the Small Magellanic Cloud (SMC) for observations with the High Resolution Imager (HRI), covering a field of 5°x5°. From these data a catalogue of 121 discrete X-ray sources was derived. By cross-correlating the source catalogue with the SIMBAD data base and the TYCHO catalogue, the systematic positional error of the HRI source positions could be reduced. In total the X-ray position for 99 HRI sources was corrected yielding positional errors between 1" and 16". The HRI catalogue was also cross-correlated with the catalogues derived from the ROSAT Position Sensitive Propotional Counter (PSPC) pointings (Kahabka et al., 1999A&AS..136...81K; Haberl et al., 2000A&AS..142...41H). For 75 HRI sources PSPC counterparts were found and thus hardness ratios are given. With the help of the information obtained from the cross-correlations 56 HRI sources were identified with objects of known or proposed nature. Four foreground stars, six supernova remnants, four supersoft sources, 12 X-ray binaries, and one AGN were detected by the HRI. Based on the existence of a likely optical counterpart or properties like hardness ratio and X-ray to optical flux ratio, further 15 HRI sources were classified into different source types.

Abstract Copyright:

Journal keyword(s): catalogs - galaxies: magellanic clouds - galaxies: stellar content - X-rays: galaxies - X-rays: stars

VizieR on-line data: <Available at CDS (J/A+AS/147/75): table3.dat>

Nomenclature: Table 3: [SHP2000] SMC NNN (Nos 1-121).

Simbad objects: 124

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