SMCROSXRAY - ROSAT PSPC Survey of the Small Magellanic Cloud
A ROSAT PSPC X-Ray Survey of the Small Magellanic Cloud Kahabka P., Pietsch W., Filipovic M.D., Haberl F. <Astron. Astrophys. Suppl. Ser. 136, 81 (1999)> =1999A&AS..136...81K
The name constructed from the catalog sequential number together with the prefix 'KPF99' recommended by the Dictionary of Nomenclature for this catalog.
The ROSAT source name.
The right ascension in the selected equinox. The equinox of the positions in the input table for this catalog was J2000.
The declination in the selected equinox. The equinox of the positions in the input table for this catalog was J2000.
Galactic longitude of the object.
Galactic latitude of the object.
The 90% confidence positional uncertainty of the X-ray position, in arc seconds.
The total count rate of the X-ray source in the 0.1-2.4 keV energy range.
The 1-sigma error of the total count rate.
The soft hardness ratio HR1 = (H-S)/(H+S), where H is the counts in ROSAT PSPC channels 52-201 (energies from 0.5-2.1 keV), and S is the counts in ROSAT PSPC channels 11-41 (0.1-0.4 keV).
The 1-sigma error of the soft hardness ratio.
The hard hardness ratio HR2 = (H2-H1)/(H2+H1), where H1 is the counts in ROSAT PSPC channels 52-90 (energies from 0.5-0.9 keV), and H2 is the counts in ROSAT PSPC channels 91-201 (0.9-2.0 keV).
The 1-sigma error of the hard hardness ratio.
The source extent of the X-ray source, in arcseconds, in those cases where the likelihood ratio for extent is greater than 10.
The likelihood ratio of existence LH_exist which is related to the probability of existence P by P ~ (1-exp(-LH_exist)). Only sources for which LH_exist > 10 (P > (1 - 4.5 x 10-5)) are included in this catalog.
The off-axis angle of the X-ray source, in arcminutes, for the detecttion with the highest LH_exist from the different bands.
The source number of the corresponding Einstein identification given by Wang & Wu, 1992, ApJS, 78, 391.
The offset, in arcseconds, of the ROSAT PSPC position from the Einstein source position.
The spectral type of the Simbad-identified star.
The magnitude of the Simbad-identified star.
The offset, in arcseconds, of the ROSAT PSPC position from the position of the Simbad-identified star.
The source classification scheme used in the catalog (more details on how sources were assigned to these classes can be found in Table 3 of the published version of this catalog):
A: background AGN or quasar B: hard X-ray binary BL: luminous hard X-ray binary BW: weak hard X-ray binary D: (possible) artifact F: foreground star R: supernova remnant or extended structure S: super-soft source SL: luminous super-soft source SW: low-luminosity super-soft source
A refined source classification for candidate AGN and hard X-ray binaries:
AB: class A or B (see broad class definitions) H: HII region
A note on either the radio or the optical identification.
An approximate browse classification, derived from the value of the broad_class field. Notice that in some cases, the refined_class parameter gives additional or different classification information.