ChanNGalPSC ivo://nasa.heasarc/chpngptsrc NASA/GSFC HEASARC Colbert et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The authors have analyzed Chandra ACIS observations of 32 nearby spiral and elliptical galaxies. The properties (e.g., counts in 3 energy bands, hardness ratios and inferred X-ray luminosities) of the 1441 X-ray point sources that were detected in these galaxies are listed in this table. The total point-source X-ray (0.3 - 8.0 keV) luminosity L<sub>XP</sub> is found to be well correlated with the B-band, K-band, and FIR+UV luminosities of spiral host galaxies, and is well correlated with the B-band and K-band luminosities of elliptical galaxies. This suggests an intimate connection between L<sub>XP</sub> and both the old and the young stellar populations, for which K and FIR+UV luminosities are reasonable proxies for the galaxy mass and the star formation rate (SFR). This table was created by the HEASARC in October 2006 based on CDS table J/ApJ/602/231/tablea1.dat This is a service provided by NASA HEASARC . 2004ApJ...602..231C https://heasarc.gsfc.nasa.gov/W3Browse/all/chpngptsrc.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=chpngptsrc& GET text/xml 180 99999 true 196.29041667 -49.52861111 0.0166666666666667 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=chpngptsrc GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_chpngptsrc&Action=More+Options&Action=Parameter+Search&ConeAdd=1 CHANDRA 0.0166666666666667 X-ray public chpngptsrc Chandra Nearby Galaxies Point Source Catalog galaxy_name Host Galaxy NGC Number meta.id.assoc char nullable name Source Designation 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 hb_counts Net Observed Counts in the Hard Band ct phot;em.X-ray.medium double nullable hb_counts_error Uncertainty in Hard-Band Counts ct stat.error;phot;em.X-ray.medium double nullable log_lx Log of the 0.3-8keV X-ray Luminosity in Units of erg/s log(erg/s) phys.luminosity;em.X-ray.medium double 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 hr_1_error Uncertainty in Hard/Medium Hardness Ratio stat.error;phot.count;arith.ratio;em.X-ray.medium;em.X-ray.soft double nullable sb_counts Net Observed Counts in the Soft Band ct phot;em.X-ray.soft double nullable acis_ccd ACIS CCD Number instr;instr.det short nullable mb_counts Net Observed Counts in the Medium Band ct phot;em.X-ray.soft double nullable bii Galactic Latitude degree pos.galactic.lat double nullable hr_1 The (H-M)/(H+M) Hardness Ratio phot.count;arith.ratio;em.X-ray.medium;em.X-ray.soft double nullable hr_2 The (M-S)/(M+S) Hardness Ratio phot.count;arith.ratio;em.X-ray.soft double nullable mb_counts_error Uncertainty in Medium-Band Counts ct stat.error;phot;em.X-ray.soft double nullable sb_counts_error Uncertainty in Soft-Band Counts ct stat.error;phot;em.X-ray.soft double nullable lii Galactic Longitude degree pos.galactic.lon double nullable hr_2_error Uncertainty in Medium/Soft Hardness Ratio stat.error;phot.count;arith.ratio;em.X-ray.soft double nullable