MAXIGSCHGL ivo://nasa.heasarc/maxigschgl NASA/GSFC HEASARC Hiroi et al. 2026-10-02 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source This table contains the catalog of high Galactic-latitude (|b| > 10<sup>o</sup>) X-ray sources detected in the first 37 months of data accumulation of the Monitor of All-sky X-ray Image/Gas Slit Camera (MAXI/GSC). To achieve the best sensitivity, the authors developed a background model of the GSC that well reproduced the data based on the detailed on-board calibration. Source detection was performed through image fits with a Poisson likelihood algorithm. The catalog contains 500 objects detected with significances >= 7 in the 4-10 keV band. The limiting sensitivity is ~7.5 x 10<sup>-12</sup> erg cm<sup>-2</sup> s<sup>-1</sup> ( ~0.6 mCrab) in the 4-10 KeV band for 50% of the survey area, which is the highest ever achieved in an all-sky survey mission covering this energy band. In their paper, the authors summarize the statistical properties of the catalog and results from cross-matching with the Swift/BAT 70-month catalog (BAT70), the meta-catalog of X-ray detected clusters of galaxies (MCXC), and the MAXI/GSC 7-month catalog (GSC7). This catalog lists the source name (2MAXI), the position and its error, the detection significances and fluxes in the 4-10 keV and 3-4 keV bands, the hardness ratio, and the basic information on the likely counterpart (the latter available for 296 of the sources). This table was created by the HEASARC in September 2013 based on the electronic version of Table 1 from the reference paper which was obtained from The ApJS web site. This is a service provided by NASA HEASARC . 2013ApJS..207...36H https://heasarc.gsfc.nasa.gov/W3Browse/all/maxigschgl.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=maxigschgl& GET text/xml 180 99999 true 333.3 -89.2 0.0166666666666667 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=maxigschgl GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_maxigschgl&Action=More+Options&Action=Parameter+Search&ConeAdd=1 MAXI 0.0166666666666667 X-ray public maxigschgl 37-Month MAXI/GSC High Galactic-Latitude Source Catalog source_number Sequential Identification Number for Each Source in Catalog meta.id;src short nullable name MAXI Source Designation (2MAXI JHHMM+DDd) 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 error_radius 1-Sigma Statistical Position Error arcsec stat.error;pos double nullable hb_flux Flux in the 4-10keV Band erg/s/cm^2 phot.flux;em.X-ray.medium double nullable hb_flux_error 1-Sigma Error in the Flux in the 4-10keV Band erg/s/cm^2 stat.error;phot.flux;em.X-ray.medium double nullable sb_flux Flux in the 3-4keV Band erg/s/cm^2 phot.flux;em.X-ray.medium double nullable sb_flux_error 1-Sigma Error in the Flux in the 3-4keV Band erg/s/cm^2 stat.error;phot.flux;em.X-ray.medium double nullable ctrpart_name Counterpart Designation meta.id.assoc char nullable object_type Source Type src.class char nullable redshift Redshift src.redshift double nullable ra_ctrpart Counterpart Right Ascension degree pos.eq.ra double nullable gsc7_source_number Counterpart Source Number in GSC7 Catalog meta.id.assoc short nullable bii Galactic Latitude degree pos.galactic.lat double nullable sb_significance The 3-4keV Detection Significance stat.likelihood;em.X-ray.medium double nullable dec_ctrpart Counterpart Declination degree pos.eq.dec double nullable hardness_ratio Hardness Ratio phot.flux;arith.ratio;em.X-ray double nullable class Browse Object Classification src.class short nullable source_flag Flag [ABCDEFG] Indicates Note Concerning Source meta.note;src char nullable hb_significance The 4-10keV Detection Significance stat.likelihood;em.X-ray.medium double nullable ctrpart_flags Flags [BMG] Indicate Counterparts Found in B=BAT70, M=MCXC, and G=GSC7 Catalogs meta.code;src char nullable error_radius_limit Limit Flag for 1-Sigma Statistical Position Error meta.code;pos char nullable lii Galactic Longitude degree pos.galactic.lon double nullable hardness_ratio_error 1-Sigma Error in Hardness Ratio stat.error;phot.flux;arith.ratio;em.X-ray 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