/ftp/cats/2/335



==========================================================================
II/335  Revised catalog of GALEX UV sources (GUVcat_AIS GR6+7)  (Bianchi+ 2017)
The following files can be converted to FITS (extension .fit or fit.gz)
	galex_ais.sam table2.dat table3.dat table4.dat table5.dat
==========================================================================
Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=II/335
==========================================================================

drwxr-xr-x 351 cats archive 8192 Mar 25 10:13 [Up] drwxr-xr-x 5 cats archive 4096 Dec 20 22:48 [TAR file] -rw-r--r-- 1 cats archive 507 Dec 20 11:59 .message -r--r--r-- 1 cats archive 24532 May 22 2019 ReadMe -rw-r--r-- 1 cats archive 3150 Dec 20 11:58 +footg5.gif -rw-r--r-- 1 cats archive 9660 Dec 20 12:00 +footg5.png -rw-r--r-- 1 cats archive 68905 Dec 20 11:58 +footg8.gif -rw-r--r-- 1 cats archive 92570 Dec 20 12:00 +footg8.png -r--r--r-- 1 cats archive 161239 May 9 2019 galex_ais.sam.gz [Uncompressed] -rw-r--r-- 1 cats archive 2260800 Aug 22 2022 tab_2335_1_II_335_galex_ais.moc.fits -r--r--r-- 1 cats archive 51686 Aug 7 2017 table2.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 692618 Aug 7 2017 table3.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 1511452 Aug 7 2017 table4.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 414828 Aug 7 2017 table5.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : II/335 Revised catalog of GALEX UV sources (GUVcat_AIS GR6+7) (Bianchi+ 2017) ================================================================================ Revised catalog of GALEX ultraviolet sources. I. The All-Sky Survey: GUVcat_AIS. Bianchi L., Shiao B., Thilker D. <Astrophys. J. Suppl. Ser., 230, 24-24 (2017)> =2017ApJS..230...24B (SIMBAD/NED BibCode) =2014AdSpR..53..900B ================================================================================ ADC_Keywords: Photometry, ultraviolet ; Ultraviolet Mission_Name: GALEX Keywords: catalogs; Galaxy: stellar content; stars: AGB and post-AGB; stars: early-type; surveys; ultraviolet: general Abstract: The Galaxy Evolution Explorer (GALEX) imaged the sky in two ultraviolet (UV) bands, far-UV (FUV, lambda_eff_ 1528AA), and near-UV (NUV, lambda_eff_ 2310AA), delivering the first comprehensive sky surveys at these wavelengths. The GALEX database contains FUV and NUV images,  500 million source measurements and over 100000 low-resolution UV spectra. The UV surveys are a unique resource for statistical studies of hot stellar objects, z< 2 QSOs, star-forming galaxies, nebulae and the interstellar medium, and provide a roadmap for planning future UV instrumentation and follow-up observing programs. We present science-enhanced, "clean" catalogs of GALEX UV sources, with useful tags to facilitate scientific investigations. The catalogs are an improved and expanded version of our previous catalogs of UV sources (BCScat; Bianchi+, 2011, J/MNRAS/411/2770 ; II/312 and 2014AdSpR..53..900B). With respect to BCScat, we have patched 640 fields for which the pipeline had improperly coadded non-overlapping observations, and we provide a version with a larger sky coverage (about 10%) by relaxing the restriction to the central area of the GALEX field to 1.1deg diameter (GUVcat_AIS_fov055: GUVcat_AIS FOV_radius <0.55deg), as well as the cleaner, more restrictive version using only the 1deg central portion of each field as in BCScat (GUVcat_AIS_fov050: GUVcat_AIS FOV_radius <0.50deg). We added new tags to facilitate selection and cleaning of statistical samples for science applications: we flag sources within the footprint of extended objects (nearby galaxies, stellar clusters) so that these regions can be excluded for estimating source density. As in our previous catalogs, in GUVcat duplicate measurements of the same source are removed, so that each astrophysical object has only one entry. Such a unique-source catalog is needed to study the density and distributions of sources, and to match UV sources with catalogs at other wavelengths. The catalog includes all observations from the All-Sky Imaging Survey (AIS), the survey with the largest area coverage, with both FUV and NUV detectors exposed: over 28700 fields, made up of a total of 57000 observations ("visits"). The total area covered, when overlaps are removed and gaps are accounted for, is 24790 square degrees for GUVcat_AIS_fov055 (GUVcat_AIS_fov055) and 22125 square degrees for (GUVcat_AIS_fov050). The total numbers of "unique" AIS sources (eliminating duplicate measurements) are 82,992,086 (GUVcat_AIS_fov055) and 69,772,677 (GUVcat_AIS_fov050). The typical depth of the GUVcat_AIS catalog is FUV=19.9, NUV=20.8 AB mag. Description: The Galaxy Evolution Explorer (GALEX) was a NASA Small Explorer mission which imaged the sky in 2 ultraviolet bands, FUV (far-UV) and NUV (near-UV) and provided the first UV sky surveys. It was launched on 2003 April 28 and decommissioned by NASA on 2013 June 28. Its characteristics are: -------------------------------------------------------------------- FUV NUV -------------------------------------------------------------------- Bandwidth 1344-1786 1771-2831 (AA) Effective wavelength 1538.6 2315.7 (AA) Astrometry (R<0.6deg) 0.59 0.49 (arcsec) Photometry (1 sigma) 0.05 0.03 (ABmag) Zero point 18.82 20.08 (ABmag) Image resolution 4.2 5.3 (arcsec/pix) Spectral resolution 200 118 (deltalambda/lambda) Field of view 1.28 1.24 (deg) --------------------------------------------------------------------