MAXIGSCHGL - First MAXI/GSC High Galactic-Latitude Source Catalog
The first MAXI/GSC catalog in the high Galactic-latitude sky. Hiroi K., Ueda Y., Isobe N., Hayashida M., Eguchi S., Sugizaki M., Kawai N., Tsunemi H., Matsuoka M., Mihara T., Yamaoka K., Ishikawa M., Kimura M., Kitayama H., Kohama M., Matsumura T., Morii M., Nakagawa Y.E., Nakahira S., Nakajima M., Negoro H., Serino M., Shidatsu M., Sootome T., Sugimori K., Suwa F., Toizumi T., Tomida H., Tsuboi Y., Ueno S., Usui R., Yamamoto T., Yamazaki K., Yoshida A. <Publ. Astron. Soc. Jap., 63, S677-S689 (2011)> =2011PASJ...63S.677H (SIMBAD/NED BibCode)
This number, in order of increasing J2000.0 Right Acension, uniquely identifies each source in this catalog.
The designated MAXI source name based on its J2000.0 position, e.g., 'MAXI JHHMM+DDd'.
The best-fit Right Ascension of the MAXI source in the selected equinox. This was given in J2000.0 decimal degree coordinates to a precision of 0.1 degrees in the original table. The position error of MAXI sources is typically 0.4 degrees for 7-sigma sources at the 90% confidence level.
The best-fit Declination of the MAXI source in the selected equinox. This was given in J2000.0 decimal degree coordinates to a precision of 0.1 degrees in the original table. The position error of MAXI sources is typically 0.4 degrees for 7-sigma sources at the 90% confidence level.
The best-fit Galactic Longitude of the MAXI source.
The best-fit Galactic Latitude of the MAXI source.
The significance (number of sigma) of the MAXI GSC detection.
The MAXI/GSC flux in the 4 - 10 keV band, in erg s-1 cm-2, calculated from the count rate in Crab units (1 Crab = 1.21 x 10-8 erg s-1 cm-2), assuming a source spectral power-law photon index of 2.1.
The 1-sigma statistical error in the MAXI/GSC flux in the 4 - 10 keV band, in erg s-1 cm-2.
The counterpart designation of the MAXI source. The authors used the catalogs and references listed in Table 2 of the reference paper to identify the MAXI sources, looking for matches within 3 sigmapos of the MAXI position, where sigmapos = sqrt [(sigmastat)2 + (sigmasys)2], sigmasys is the MAXI 1-sigma systematic error of 0.05 degreees and sigmastat is the MAXI 1-sigma statistical error. If no sources were found in these catalogs, the authors also refer to other catalogs. Ten MAXI sources were found to have no matching counterparts within 3 sigmapos and, in these cases, the authors identified the counterpart by individual inspection using NED and Simbad.
The Right Ascension of the counterpart in the selected equinox. This was given in J2000.0 decimal degree coordinates to a precision of 0.001 degrees in the original table.
The Declination of the counterpart in the selected equinox. This was given in J2000.0 decimal degree coordinates to a precision of 0.001 degrees in the original table.
The object type classification of the source, using the following abbreviations:
Sy = Seyfert galaxy LMXB = low-mass X-ray binary HMXB = high-mass X-ray binary Symb = symbiotic star NS = neutron star BHC = black hole candidate CV = cataclysmic variable ULX = ultra-luminous X-ray source msPSR = millisecond pulsar
The redshift of the source, given only for extragalactic objects. This was given to a widely varying precision (10-6 to 10-2) in the original table.
Other designation(s) for the source.
This parameter flags notes on specific sources, with the following coded meanings:
A = Identified by individual inspection since in the image fitting the position is unable to be determined due to significant source confusion with Perseus Cluster B = The data is extended compared with the PSF model C = Matsumura et al. (2011, ATel, 3308) D = Suzuki et al. (2010, ATel, 2401) E = Isobe et al. (2010PASJ, 62, L55) F = This source is likely to be contaminated by 1RXS J133344.4-231734 and TV Hya. ESO 509-IG66 has double nuclei with similar fluxes in the 2-10keV band (Guainazzi et al. 2005, A&A, 429, L9). The redshift is adopted from Sekiguchi and Wolstencroft (1992, MNRAS, 255, 581). G = This source is possibly contaminated by V893 Sco and other nearby sources.
The HEASARC Browse object classification, based on the object_type parameter value.