GMRTSPXFLS ivo://nasa.heasarc/gmrtspxfls NASA/GSFC HEASARC Garn et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source This table contains a source catalog based on observations of the Spitzer extragalactic First Look Survey (xFLS) field taken at 610 MHz with the Giant Metrewave Radio Telescope (GMRT). Seven individual pointings were observed, covering a total area of ~ 4 square degrees with a resolution of 5.8 x 4.7 arcsec<sup>2</sup>, position angle 60 degrees. The rms noise at the center of the pointings is between 27 and 30 microJansky (µJy) before correction for the GMRT primary beam. The techniques used for data reduction and production of a mosaicked image of the region are described in the reference paper, where the final mosaic, along with a catalog of 3944 sources detected above a ~ 5-sigma threshold, are presented. The survey complements existing radio and infrared data available for this region. For further details of the surveys and data analysis procedures, please refer to the published paper. This table contains the xFLS catalog of 3944 610-MHz radio sources detected by the GMRT, the 05-May-2008 (Release 1.1) version provided to the CDS by the co-author Sally Hales (MRAO, Cambridge). In this version, a rounding error in the right ascension and declination positions listed for some sources in the original 10-May-2007 (Release 1.0) version has been corrected. The source IAU designations remain unchanged, having been based on the correctly computed positions throughout. The main purpose in correcting the positions was to eliminate sporadic mismatches between IAU designation and listed position in the first data release. In other respects the effect on the positions is negligible. This table was created by the HEASARC in February 2012 based on <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/MNRAS/376/1251">CDS catalog J/MNRAS/376/1251</a> file gmrtfls.dat, the release 1.1 (05-May-2008) version. This is a service provided by NASA HEASARC . 2007MNRAS.376.1251G https://heasarc.gsfc.nasa.gov/W3Browse/all/gmrtspxfls.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=gmrtspxfls& GET text/xml 180 99999 true 259.455375 58.30013889 0.0833333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=gmrtspxfls GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_gmrtspxfls&Action=More+Options&Action=Parameter+Search&ConeAdd=1 RADIO CATALOG 0.0833333333333333 Radio public gmrtspxfls Giant Metrewave Radio Telescope Spitzer xFLS Field 610-MHz Radio name IAU Designation of Source (FLSGMRT JHHMMSS.s+DDMMSS) meta.id;meta.main char nullable ra Centroid Right Ascension degree pos.eq.ra;meta.main double nullable dec Centroid Declination degree pos.eq.dec;meta.main double nullable flux_610_mhz Peak Pixel Brightness (in mJy/beam) mJy/beam phot.flux.density;em.radio.400-750MHz double nullable rms_610_mhz Local RMS Noise (in mJy/beam) mJy/beam stat.error;phot.flux.density;em.radio.400-750MHz double nullable int_flux_610_mhz Integrated Flux at 610MHz mJy phot.flux.density;em.radio.400-750MHz double nullable int_flux_610_mhz_error Error for Integrated Flux mJy stat.error;phot.flux.density;em.radio.400-750MHz double nullable sextractor_db_flag Source Extractor Flag [01] meta.code.qual short nullable bii Centroid Galactic Latitude degree pos.galactic.lat double nullable centroid_x_pixel Centroid X Pixel Location (Nearest Pixel) pos.cartesian.x;instr.pixel short nullable lii Centroid Galactic Longitude degree pos.galactic.lon double nullable centroid_y_pixel Centroid Y Pixel Location (Nearest Pixel) pos.cartesian.y;instr.pixel short 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