NGC6334CXO ivo://nasa.heasarc/ngc6334cxo NASA/GSFC HEASARC Feigelson et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The full stellar population of NGC 6334, one of the most spectacular regions of massive star formation in the nearby Galaxy, has not been well sampled in past studies. The authors have analyzed a mosaic of two Chandra X-ray Observatory images of the region using sensitive data analysis methods, giving a list of 1607 faint X-ray sources with arcsecond positions and approximate line-of-sight absorption. About 95% of these are expected to be cluster members, most lower mass pre-main-sequence stars. Extrapolating to low X-ray levels, the total stellar population is estimated to be 20,000 - 30,000 pre-main-sequence stars. The X-ray sources show a complicated spatial pattern with ~10 distinct star clusters. The heavily obscured clusters are mostly associated with previously known far-infrared sources and radio H II regions. The lightly obscured clusters are mostly newly identified in the X-ray images. Dozens of likely OB stars are found, both in clusters and dispersed throughout the region, suggesting that star formation in the complex has proceeded over millions of years. A number of extraordinarily heavily absorbed X-ray sources are associated with the active regions of star formation. This table was created by the HEASARC in August 2009 based on the electronic version of table 1 from the above reference which were obtained from the AJ web site. This is a service provided by NASA HEASARC . 2009AJ....138..227F https://heasarc.gsfc.nasa.gov/W3Browse/all/ngc6334cxo.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=ngc6334cxo& GET text/xml 180 99999 true 260.001028 -36.084851 0.0166666666666667 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=ngc6334cxo GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_ngc6334cxo&Action=More+Options&Action=Parameter+Search&ConeAdd=1 CHANDRA 0.0166666666666667 X-ray public ngc6334cxo NGC 6334 Chandra X-Ray Point Source Catalog source_number Sequential Identification Number for Each Source in Catalog meta.id;src short nullable name IAU-Style 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 counts Net Extracted 0.5-8 keV Band Counts ct phot;em.X-ray double nullable counts_error Average of Upper and Lower 1-Sigma Errors in Counts ct stat.error;phot;em.X-ray double nullable median_energy Background-Corrected Median Photon Energy (Total Band) keV phys.energy double nullable ctrprt_names Possible Counterparts meta.id.cross char nullable alt_name Alternative Catalog-Based Source Designation meta.id char nullable bck_counts Expected Background 0.5-8 keV Band Counts ct phot;instr.background;em.X-ray double nullable off_axis Off-Axis Angle (arcmin) arcmin instr.offset double nullable kmag_flag Flag [:] Indicates Photometric Confusion meta.code;phot.mag;em.IR.K char nullable kmag 2MASS Point Source Catalog K_S Band Magnitude mag phot.mag;em.IR.K double nullable psf_fraction Fraction of PSF at 1.5 keV Enclosed in Extraction Region instr.det.psf double nullable bii Galactic Latitude degree pos.galactic.lat double nullable log_bck_prob_limit Limit Flag for Logarithm of Probability That Source Is Background Fluctuations meta.code;stat.probability char nullable lii Galactic Longitude degree pos.galactic.lon double nullable hb_counts Net Extracted 2-8 keV Band Counts ct phot;em.X-ray.medium double nullable kmag_limit Limit Flag for K Magnitude meta.code;phot.mag;em.IR.K char nullable log_bck_prob Logarithm of Probability That Source Arises from Local Background Fluctuations stat.probability double nullable error_radius Estimated Standard Deviation of Random Component of Position Error (arcsec) arcsec stat.error;pos 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