PSPC/LMC ivo://nasa.heasarc/lmcrosxray NASA/GSFC HEASARC Haberl, Pietsch 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source More than 200 ROSAT PSPC observations performed between 1990 and 1994 in a 10 by 10 degree field centered on the Large Magellanic Cloud (LMC) have been analyzed on order to derive a catalogue of X-ray sources. The list contains 758 sources together with their X-ray properties. From cross-correlations of the PSPC catalogue with the SIMBAD data base and literature searches likely identifications are given in the paper from which this catalogue was derived (Haberl & Pietsch 1999, A&AS, 139, 277: Table 10) for 144 of these X-ray sources based on positional coincidence, but also taking into account X-ray properties like hardness ratios and source extent. Forty-six known sources are associated with supernova remnants and candidates in the LMC (SNRs: Haberl & Pietsch 1999, A&AS, 139, 277: Table 6), most of them already detected by previous X-ray missions. The number of known X-ray binaries in the LMC has increased to 17, and of supersoft sources to 9. The remaining ~50% of the identified sources comprise mainly foreground stars (up to 57) and background extragalactic objects (up to 15). This database was created at the HEASARC in June 2000 based on the ADC/<a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+AS/139/277">CDS Catalog J/A+AS/139/277</a>, and is derived from Table 1 of the reference. This is a service provided by NASA HEASARC . 1999A&AS..139..277H https://heasarc.gsfc.nasa.gov/W3Browse/all/lmcrosxray.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=lmcrosxray& GET text/xml 180 99999 true 79.15792 -72.61694 0.0166666666666667 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=lmcrosxray GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_lmcrosxray&Action=More+Options&Action=Parameter+Search&ConeAdd=1 ROSAT 0.0166666666666667 X-ray public lmcrosxray ROSAT PSPC Catalog of LMC X-Ray Sources (Haberl & Pietsch) name Source Identification meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable count_rate PSPC 0.1-2.4 keV Count Rate (cps) ct/s phot.count;em.X-ray.soft float nullable count_rate_error Count Rate Error stat.error;phot.count;em.X-ray.soft float nullable error_radius X-ray Positional Error Radius (arcsec) arcsec stat.error;pos float nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable source_extent Source Extent (arcsec) arcsec float nullable extent_likelihood Likelihood for the Extent float nullable hardness_ratio_1 Hardness Ratio 1 phot.flux;arith.ratio;em.X-ray.soft float nullable detect_likelihood Likelihood of Source Existence double nullable ribdist Distance to Detector Window Support Structure or Detector rim (units FWHM) FWHM float nullable ror ROSAT Observation Identifier char nullable hp99 Catalog Number short nullable offaxis Off-Axis Angle (arcmin) arcmin short nullable remarks Remarks char nullable hardness_ratio_2 Hardness Ratio 2 phot.flux;arith.ratio;em.X-ray.soft float nullable bii Galactic Latitude degree pos.galactic.lat double nullable exposure Corrected Net Exposure Time (s) s time.duration;obs.exposure int nullable lii Galactic Longitude degree pos.galactic.lon double nullable hardness_ratio_2_error Error in Hardness Ratio 2 stat.error;phot.flux;arith.ratio;em.X-ray.soft float nullable hardness_ratio_1_error Error in Hardness Ratio 1 stat.error;phot.flux;arith.ratio;em.X-ray.soft float nullable