SMCROSXRY2 - ROSAT PSPC Catalog of SMC X-Ray Sources (Haberl et al)
The source identification recommended by the CDS Dictionary of Nomenclature of Celestial Objects, where the HEASARC has prefixed the running number given in the original computer-readable table with the acronym 'HFP2000'.
The right ascension of the X-ray source in the specified equinox. In the original table the RA was given in equinox 2000 and with a precision of 0.1 seconds of time.
The declination of the X-ray source in the specified equinox. In the original table this was given in equinox 2000 and with a precision of 1 arcsecond.
The galactic longitude.
The galactic latitude.
The likelihood of existence (the maximum value from the five detection energy bands).
The vignetting-corrected net exposure time in seconds.
The statistical (90% confidence) error in the X-ray position, with an additional systematic uncertainty of about 7 arcsec, in arcsec.
The PSPC 0.1-2.4 keV count rate, in counts per second.
The error in the count rate.
The hardness ratio HR1, defined as HR1 = (H-S)/(H+S), where S and H are the count rates in the 0.1-0.4 keV and 0.5-2.0 keV bands, respectively. This is not calculated in cases where not all of the required count rates are available.
The error in the hardness ratio HR1 (hardness_ratio_1).
The hardness ratio HR2, defined as HR2 = (H2-H1)/(H1+H2), where H1 and H2 are the count rates in the 0.5-0.9 keV and 0.9-2.0 keV bands, respectively. This is not calculated in cases where not all of the required count rates are available.
The error in the hardness ratio HR2 (hardness_ratio_2).
The X-ray source extent derived from the same detection as for the source position, in arcsec.
The likelihood for the extent.
The ROSAT observation identifier, where a '+' at the end of the parameter indicates merged observations.
The Off-axis angle of the X-ray source, in arcmin.
The distance to the detector window support structure or the detector rim, in units of the FWHM of the instrument resolution at the position of the X-ray source in the detector.
The number of the nearest (within 60 arcsec) source in the Kahabka et al. 1999 Catalog (A&AS, 136, 81) [HEASARC Catalog SMCROSXRAY].
Remarks about the X-ray source.