VizieR

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VizieR

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J/ApJS/255/30
  VLASS QL Ep.1 Catalog, CIRADA version (Gordon+, 2021)
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2021ApJS..255...30G
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/255/30/comp(c)Detected components and properties (3381277 rows)
2.J/ApJS/255/30/subtile(c)Subtile metadata (35285 rows)
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Simple ConstraintList Of Constraints
 
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)CompName (char) IAU name of the component, VLASS1QLCIR JHHMMSS.ss+DDMMSS.s (Component) (Note 1)   (meta.id;meta.main)
  (1)CompId   [-588/218] The PyBDSF ID of the component in the subtile (Component) (Note 2)   (meta.id)
  (1)IslId   [0/624] The PyBDSF ID of the flux island in the subtile (Isl_id) (Note 2)   (meta.id)
  (1)RAJ2000 deg (i) [0.0/360.0] Right Ascension (J2000) (RA) (pos.eq.ra;meta.main)
  (1)DEJ2000 deg (i) [-40.02/89.83] Declination (J2000) (DEC) (pos.eq.dec;meta.main)
  (1)e_RAJ2000 deg (n) 1-sigma uncertainty in RA (E_RA) (Note 3)   (stat.error;pos.eq.ra)
  (1)e_DEJ2000 deg (n) 1-sigma uncertainty in DEC (E_DEC) (Note 3)   (stat.error;pos.eq.dec)
  (1)Ftot mJy The integrated flux density of the component in the S-band (2-4GHz) (Total_flux) (Note 3)   (phot.flux.density;em.radio.1500-3000MHz)
  (1)e_Ftot mJy 1-sigma uncertainty in total flux (ETotalf) (Note 3)   (stat.error)
  (1)Fpeak mJy/beam Peak brightness of the component in the S-band (2-4GHz) (Peak_flux) (Note 3)   (phot.flux.density;em.radio.1500-3000MHz)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)e_Fpeak mJy/beam 1-sigma uncertainty in peak flux (EPeakfl) (Note 3)   (stat.error)
  (1)Maj arcsec (n) Major axis of the component fit (Maj) (Note 3)   (stat.fit.param;meta.modelled)
  (1)e_Maj arcsec (n) 1-sigma uncertainty in Maj (E_Maj) (Note 3)   (stat.error)
  (1)Min arcsec (n) Minor axis of the component fit (Min) (Note 3)   (phys.angSize;src)
  (1)e_Min arcsec (n) 1-sigma uncertainty in Min (E_Min) (Note 3)   (stat.error;stat.min)
  (1)PA deg (n) Position angle of the component fit (PA) (Note 3)   (pos.posAng;meta.modelled)
  (1)e_PA deg (n) 1-sigma uncertainty in PA (E_PA) (Note 3)   (stat.error)
  (1)FtotIsl mJy Integrated flux density of the entire flux island (Isl_Total) (phot.flux.density;em.radio.1500-3000MHz)
  (1)e_FtotIsl mJy 1-sigma uncertainty in FtotIsl (EIslTot) (stat.error)
  (1)Islrms mJy/beam Local rms noise of the flux island (Isl_rms) (stat.stdev;phot.flux.density)
  (1)Islmean mJy/beam Mean value of the flux island (Isl_mean) (phot.flux.density;stat.mean)
  (1)ResIdIslrms mJy/beam Local rms noise of the residual for the flux island (Resid_Isl) (Note 3)   (stat.fit.residual;phot.flux.density)
  (1)ResidIslmean mJy/beam Mean value of the residual for the flux island (Resid_Isl) (Note 3)   (instr.det.noise)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)RAMdeg deg Right Ascension (J2000) of the component peak brightness (RA_max) (pos.eq.ra)
  (1)DEMdeg deg Declination (J2000) of the component peak brightness (DEC_max) (pos.eq.dec)
  (1)e_RAMdeg deg (n) 1-sigma uncertainty in RAMdeg (ERAmax) (Note 3)   (stat.error)
  (1)e_DEMdeg deg (n) 1-sigma uncertainty in DEMdeg (EDECmax) (Note 3)   (stat.error)
  (1)SCode (char) [SCME] Component type (S_Code) (Note 4)   (meta.code)
  (1)Xposn pix X-pixel coordinate of the component in the subtile (Xposn) (pos.cartesian.x;instr.det)
  (1)e_Xposn pix (n) 1-sigma uncertainty in Xposn (E_Xposn) (Note 3)   (stat.error;pos.cartesian.x)
  (1)Yposn pix Y-pixel coordinate of the component in the subtile (Yposn) (pos.cartesian.y;instr.det)
  (1)e_Yposn pix (n) 1-sigma uncertainty in Yposn (E_Yposn) (Note 3)   (stat.error;pos.cartesian.y)
  (1)XposnMax pix X-pixel coordinate of the component peak brightness in the subtile (Xposn_max) (pos.cartesian.x;instr.det)
  (1)e_XposnMax pix (n) 1-sigma uncertainty in Xposn_max (EXposnm) (Note 3)   (stat.error;pos.cartesian.x)
  (1)YposnMax pix Y-pixel coordinate of the component peak brightness in the subtile (Yposn_max) (pos.cartesian.y;instr.det)
  (1)e_YposnMax pix (n) 1-sigma uncertainty in Yposn_max (EYposnm) (Note 3)   (stat.error;pos.cartesian.y)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)MajImgPlane arcsec (n) Major axis of the component fit in the image plane (Majimgp) (Note 3)   (phys.angSize)
  (1)e_MajImgPlane arcsec (n) 1-sigma uncertainty in Majimgplane (EMajimg) (Note 3)   (stat.error)
  (1)MinImgPlane arcsec (n) Minor axis of the component fit in the image plane (Minimgp) (phys.angSize;src)
  (1)e_MinImgPlane arcsec (n) 1-sigma uncertainty in Minimgplane (EMinimg) (Note 3)   (stat.error)
  (1)PAImgPlane deg (n) Position angle of the component fit in the image plane (PAimgpl) (Note 3)   (pos.posAng;meta.modelled)
  (1)e_PAImgPlane deg (n) 1-sigma uncertainty in PAimgplane (EPAimg_) (Note 3)   (stat.error)
  (1)DCMaj arcsec (n) Major axis of the component fit after deconvolution from the VLASS beam (DC_Maj) (Note 3)   (phys.angSize)
  (1)e_DCMaj arcsec (n) 1-sigma uncertainty in DC_Maj (EDCMaj) (Note 3)   (stat.error)
  (1)DCMin arcsec (n) Minor axis of the component fit after deconvolution from the VLASS beam (DC_Min) (Note 3)   (phys.angSize;src)
  (1)e_DCMin arcsec (n) 1-sigma uncertainty in DC_Min (EDCMin) (Note 3)   (stat.error)
  (1)DCPA deg (n) Position angle of the component fit after deconvolution from the VLASS beam (DC_PA) (Note 3)   (pos.posAng;meta.modelled)
  (1)e_DCPA deg (n) 1-sigma uncertainty in DC_PA (EDCPA) (Note 3)   (stat.error)
  (1)DCMajImgPlane arcsec (n) Major axis of the component fit in the image plane after deconvolution from the VLASS beam (DCMajim) (Note 3)   (phys.angSize)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)e_DCMajImgPlane arcsec (n) 1-sigma uncertainty in DCMajimg_plane (EDCMaj_) (Note 3)   (stat.error)
  (1)DCMinImgPlane arcsec (n) Minor axis of the component fit in the image plane after deconvolution from the VLASS beam (DCMinim) (Note 3)   (phys.angSize;src)
  (1)e_DCMinImgPlane arcsec (n) 1-sigma uncertainty in DCMinimg_plane (EDCMin_) (Note 3)   (stat.error)
  (1)DCPAImgPlane deg (n) Position angle of the component fit in the image plane after deconvolution from the VLASS beam (DCPAimg) (Note 3)   (pos.posAng;meta.modelled)
  (1)e_DCPAImgPlane deg (n) 1-sigma uncertainty in DCPAimg_plane (EDCPA_i) (stat.error)
   (ALL)Tile (char) VLASS tile (Tile) (Note 5)   (obs.field)
   (ALL)Subtile (char) Name of the Subtile the component was detected in (Subtile) (obs.field)
  (1)RASdeg deg Right Ascension (J2000) of the Subtile (QLimage) (pos.eq.ra)
  (1)DESdeg deg Declination (J2000) of the Subtile (QLimage) (pos.eq.dec)
  (1)NVSSdist arcsec Angular separation from the nearest NVSS source (NVSS_dist) (Note 6)   (pos.angDistance)
  (1)FIRSTdist arcsec Angular separation from the nearest FIRST source (FIRST_dis) (Note 7)   (pos.angDistance)
  (1)PeakToRing  (n) Ratio of maximum brightness within 5" of the component to the maximum brightness in an annulus centred on the component with inner and outer radii of 5" and 10" (Peaktor) (Note 8)   (phot.flux;arith.ratio)
  (1)DupFlag   [0/2] Flag to identify duplicate detections (Duplicate) (Note 9)   (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)QualFlag   [0/7] Flag to denote the Quality of the detection (Quality_f) (Note 10)   (meta.code.qual)
  (1)NNdist arcsec (n) Angular separation from nearest other fitted component in the catalog after accounting for duplicates (NN_dist) (Note 3)   (pos.angDistance)
  (1)BMaj arcsec Major axis of the VLASS beam (BMAJ) (phys.angSize)
  (1)BMin arcsec Minor axis of the VLASS beam (BMIN) (phys.angSize;src)
   (ALL)BPA deg (n) [-90/90] Position angle of the VLASS beam (BPA) (pos.posAng;instr.beam)
  (1)MainSample   [0/1] Part of the main sample used for the scientific analyses presented in the paper (main_samp) (Note 11)   (meta.code)
  (1)QLcutout (char) Link to a 3 arcminute square cutout of the component (QL_cutout) (meta.ref.url)
  (2)Imagever   [1/5] Version of the image produced by NRAO (Image_version) (meta.software)
  (2)Epoch  The epoch and sub-epoch of VLASS this Subtile is taken from (Epoch) (time.epoch)
  (2)Bmaj deg Major axis of the VLASS beam in this subtile (BMAJ) (phys.angSize;instr.beam)
  (2)Bmin deg Minor axis of the VLASS beam in this subtile (BMIN) (phys.angSize;instr.beam)
  (2)LatPole  Latitude of pole in coordinate system (LATPOLE) (pos.ecliptic.lat)
  (2)LonPole  Longitude of pole in coordinate system (LONPOLE) (pos.ecliptic.lon)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)Crval1 deg Reference pixel Right Ascension (CRVAL1) (instr.fov;instr.pixel)
  (2)Crval2 deg Reference pixel Declination (CRVAL2) (instr.fov;instr.pixel)
  (2)Obs s (n)(i) Date and time of observation (DATE-OBS) (time.epoch;obs)
  (2)RAObs deg (i) Observation Right Ascension, at epoch Obs.date (OBSRA) (pos.eq.ra;meta.main)
  (2)DEObs deg (i) Observation Declination, at epoch Obs.date (OBSDEC) (pos.eq.dec;meta.main)
  (2)Field  NRAO name of VLASS field (FIELD) (meta.id;obs.field)
  (2)DateImg (char) Date that the image file was produced (DATE) (Note 2)   (time.epoch)
  (2)Origin (char) Software (CASA) and version used to produce the image file (ORIGIN) (meta.software)
  (2)MeanIslrms mJy/beam Mean Isl_rms of components in this subtile (Meanislrms) (stat.error)
  (2)SDIslrms mJy/beam Standard deviation of the Isl_rms of components in this subtile (SDislrms) (stat.error)
  (2)Fp25 mJy/beam 25th percentile of the Peak_flux distribution for components in this subtile (Peakfluxp25) (phot.flux.density;em.radio.1500-3000MHz)
  (2)Fp50 mJy/beam 50th percentile of the Peak_flux distribution for components in this subtile (Peakfluxp50) (phot.flux.density;em.radio.1500-3000MHz)
  (2)Fp75 mJy/beam 75th percentile of the Peak_flux distribution for components in this subtile (Peakfluxp75) (phot.flux.density;em.radio.1500-3000MHz)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)Fpmax mJy/beam Peak flux of the brightest component in this subtile (Peakfluxmax) (phot.flux.density;em.radio.1500-3000MHz)
  (2)Ncomp   [11/219] Number of fitted components in this subtile (N_components) (meta.number)
  (2)NemptyIsl   [10/218] Number of empty flux islands detected in this subtile (Nemptyislands) (Note 3)   (meta.number)
  (2)Subtileurl (char) Link to the Subtile image file (Subtile_url) (meta.ref.url)
  (2)_RA.icrs deg (n)(i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
  (2)_DE.icrs deg (n)(i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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