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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/A+A/678/A151
  LoTSS DR2 optical IDs (Hardcastle+, 2023)
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2023A&A...678A.151H
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1.J/A+A/678/A151/catalogValue-added optical identification catalogue for LoTSS DR2 (4167359 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  Source (char) Object identifier (ILT name) (Source_Name) (meta.id;meta.main)
  RAJ2000 deg (i) Radio right ascension (mean position) (J2000) (RA) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Radio declination (mean position) (J2000) (DEC) (pos.eq.dec;meta.main)
  e_RAJ2000 arcsec Error on radio right ascension (E_RA) (stat.error;pos.eq.ra)
  e_DEJ2000 arcsec Error on radio declination (E_DEC) (stat.error;pos.eq.dec)
  Ftot mJy 144-MHz total flux density (Total_flux) (phot.flux.density;em.radio.100-200MHz)
  e_Ftot mJy Error on total flux density (ETotalflux) (stat.error)
  Fpeak mJy/beam 144-MHz peak flux density (Peak_flux) (phot.flux.density;em.radio.100-200MHz)
  e_Fpeak mJy/beam Error on peak flux density (EPeakflux) (stat.error)
  SCode (char) [SCMZ] PyBDSF source code or Z for composite source (S_Code) (Note 1)   (meta.code)

ALL cols		    
 (i)indexed column
  MosaicID (char) LoTSS mosaic of source image (Mosaic_ID) (obs.image)
  Maj arcsec (n) Major axis of fitted Gaussian (Maj) (phys.angSize;meta.modelled)
  Min arcsec (n) Minor axis of fitted Gaussian (Min) (phys.angSize;src)
  PA deg (n) Position angle of fitted Gaussian (PA) (pos.posAng;meta.modelled)
  e_Maj arcsec (n) Error on major axis (E_Maj) (stat.error)
  e_Min arcsec (n) Error on minor axis (E_Min) (stat.error;stat.min)
  e_PA deg (n) Error on position angle (E_PA) (stat.error)
  DCMaj arcsec (n) Deconvolved major axis of fitted Gaussian (DC_Maj) (phys.angSize.smajAxis)
  DCMin arcsec (n) Deconvolved minor axis of fitted Gaussian (DC_Min) (phys.angSize.sminAxis)
  DCPA deg (n) Deconvolved position angle of fitted Gaussian (DC_PA) (pos.posAng;meta.modelled)
  Islrms mJy/beam rms noise in island (Isl_rms) (stat.stdev;instr.det.noise)
  FlagW   [-1/23] Flag for workflow status (internal) (FLAG_WORKFLOW) (meta.code.error)
  IDFlag  (n) [-99/14] Flag for workflow status (internal) (ID_flag) (Note 2)   (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  PreFilt   [-99/14] Prefilter status (internal) (Prefilter) (Note 2)   (meta.code)
  PostFilt   [0/6] Postfilter status (internal) (Postfilter) (meta.code)
  likefin  (n) Final likelihood ratio value (internal) (lr_fin) (stat.likelihood)
  RAOdeg deg (n) Optical right ascension (J2000) (see r_RAOdeg) (optRA) (pos.eq.ra)
  DEOdeg deg (n) Optical declination (J2000) (see r_RAOdeg) (optDec) (pos.eq.dec)
  CompSize arcsec (n) Max size of convex hull surrounding components for composite sources (Composite_Size) (phys.angSize;src)
  CompWidth arcsec (n) Transverse size of convex hull surrounding components for composite sources (Composite_Width) (phys.angSize;src)
  CompPA deg (n) Position angle on the sky of longest axis of convex hull (Composite_PA) (pos.posAng;obs.field)
  Assoc  Number of components used to form composite source (Assoc) (meta.number)
  IDQual  (n) Quality of association from RGZ(L) (ID_Qual) (meta.code.qual)
  AssocQual  (n) Quality of association from RGZ(L) (Assoc_Qual) (meta.code.qual)
  BlendProb  (n) Blend probability from RGZ(L) or manual flagging) (Blend_prob) (stat.fit.goodness)
  OtherProb  (n) Other problem probability from RGZ(L) (Other_prob) (stat.fit.goodness)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Created (char) Origin of radio component assignment (Created) (meta.code)
  r_RAOdeg (char) Origin of optRA, optDec (Position_from) (meta.ref;pos.frame)
  Renamed (char) Original name e.g. in RGZ if a composite source (Renamed_from) (meta.id)
  RAIdeg deg (n) Right ascension (J2000) of positional match in Legacy/WISE crossmatch catalogue (ID_RA) (pos.eq.ra)
  DEIdeg deg (n) Declination (J2000) of positional match in Legacy/WISE crossmatch catalogue (ID_DEC) (pos.eq.dec)
  UIDL (char) Legacy ID if any (UID_L) (meta.id)
  UNWISE (char) UNWISE ID if any (UNWISE_OBJID) (meta.id)
  IDName (char) Legacy ID if present else WISE ID else blank if no ID exists (ID_NAME) (meta.id)
  Sep  (n) Offset between optRA, optDec and ID_RA, ID_DEC (non-zero only for visual inspection) (Separation) (pos.angDistance)
  LegacyID  (n) Unique source ID combining release, brick ID and objid (Legacy_ID) (meta.id)
  HPX   [16/303] Healpix of Legacy brick (internal) (HPX) (stat.fit.param)
  Release  (n) [8000/8001] Legacy release number (release) (meta.id)
  BrickId  (n) [422713/641534] Legacy brick ID (brickid) (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  ObjId  (n) Legacy object ID (objid) (meta.id)
  Maskbits  (n) Bitwise mask indicating that an object touches a pixel in the `coadd/*/*/*maskbits*` maps, as catalogued on the DR8 bitmasks page (maskbits) (meta.note)
  fracFg  (n) Profile-weighted fraction of the flux from other sources divided by the total flux in g (fracflux_g) (phot.flux;arith.ratio)
  fracFr  (n) Profile-weighted fraction of the flux from other sources divided by the total flux in r (fracflux_r) (phot.flux;arith.ratio)
  fracFz  (n) Profile-weighted fraction of the flux from other sources divided by the total flux in z (fracflux_z) (phot.flux;arith.ratio)
  Type (char) Morphological model (type) (Note 3)   (src.morph.type;meta.modelled)
  RALdeg deg (n) Right ascension (J2000) of match in Legacy catalogue (ra) (pos.eq.ra)
  DELdeg deg (n) Declination (J2000) of match in Legacy catalogue (dec) (pos.eq.dec)
  pstar  (n) [0/1] Star likelihood based on GMM modelling (type='PSF' sources only) (pstar) (stat.likelihood)
  Star (char) [True-False ] Likely star based on pstar or proper motion (deprecated), blank if no match (star) (meta.code)
  MaskOpt (char) [True-False ] Bitwise mask set if the central pixel from any image satisfies each condition in any of g, r or z as catalogued on the DR8 bitmasks page (ANYMASK_OPT) (meta.code)
  GMMcomp (char) Gaussian Mixture Model component to which source belongs (and hence the gpz++ class used for prediction) (gmmcomp) (meta.code)
  zphot  (n) [-3.73/8.28] Photo-z estimate (zphot) (src.redshift.phot)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  e_zphot  (n) [-0.01/7.6] Predicted 1-sigma uncertainty on photometric redshift (after magnitude calibration) (zphot_err) (stat.error)
  varDensity  (n) [0.0/1.22] gpz++ predicted variance from density of training set (var.density) (stat.variance)
  varTrNoise  (n) [0.0/66.83] gpz++ predicted variance from noise in training set (var.tr.noise) (stat.variance)
  varInNoise  (n) [0.0/3.89] gpz++ predicted variance from noise in fluxes used in prediction (var.in.noise) (stat.variance)
  FlagQual  (n) [0/1] Predicted photo-z quality flag, 0 if bad, 1 if good (flag_qual) (Note 4)   (meta.code.error)
  zspecSDSS  (n) [-0.01/5] SDSS spectroscopic redshift if available (zspec_sdss) (src.redshift;pos.heliocentric)
  zwarnSDSS  (n) 0 if SDSS redshift is good, 1 if bad (zwarning_sdss) (meta.code)
  PlateSDSS  (n) SDSS plate number (plate_sdss) (meta.id)
  MJDSDSS  (n) SDSS MJD (mjd_sdss) (meta.id)
  FiberSDSS  (n) SDSS fibre ID (fiberid_sdss) (meta.id)
  zHETDEX  (n) [0.01/4.15] HETDEX spectroscopic redshift if available (z_hetdex) (src.redshift;pos.heliocentric)
  zHETDEXConf  (n) HETDEX spectroscopic redshift confidence (zhetdexconf) (stat.fit.goodness)
  HETDEX  (n) HETDEX source ID (hetdex_sourceid) (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  zDESI  (n) [-0.01/4.84] DESI spectroscopic redshift if available (z_desi) (src.redshift;pos.heliocentric)
  e_zDESI  (n) [0.0/0.01] DESI spectroscopic redshift error (zdesierr) (stat.error)
  DESI  (n) DESI source ID (desi_sourceid) (meta.id)
  2RXS (char) ID in 2RXS (2RXS_ID) (meta.id)
  XMMSL2 (char) ID in XMM source catalogue (XMMSL2_ID) (meta.id)
  Resolved   [0/1] Boolean flag to indicate whether source is resolved (Resolved) (meta.code)
  LAS arcsec Estimate of angular size, only valid for sources with Resolved\equivTrue (LAS) (phys.angSize)
  zbest  (n) [0/6.6] Spec-z if available and good, else photo-z if available and good, else blank (z_best) (Note 5)   (src.redshift;pos.heliocentric)
  r_zbest (char) String describing origin of z_best (z_source) (meta.ref;pos.frame)
  Size kpc (n) LAS times angular size distance (Size) (phys.size.diameter)
  L144 W/Hz (n) Radio luminosity at 144MHz for alpha=0.7 (L_144) (Note 6)   (phys.luminosity;em.radio.100-200MHz)
  Field (char) Which of the two fields the data come from (Field) (obs.field)
  LegacyCov  Flag to say whether source is in the DESI Legacy sky area (Legacy_Coverage) (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  LMFlux mJy Flux density from LoMorph code (LM_flux) (phot.flux.density)
  LMSize arcsec (n) Size from LoMorph code (LM_size) (phys.size.diameter)
  fLMflux   [0/1] Flag to say that LoMorph flux is bad (BadLMflux) (meta.code)
  fLMimage   [0/1] Flag to say that LoMorph mask is bad (BadLMimage) (meta.code)
  r_LAS (char) Source for the LAS column (LAS_from) (meta.ref;pos.frame)
  gmag mag (n) Magnitude in g-band (mag_g) (phot.mag;em.opt.B)
  e_gmag mag (n) Magnitude error in g-band, or blank for upper limit (magerr_g) (stat.error;phot.mag)
  rmag mag (n) Magnitude in r-band (mag_r) (phot.mag;em.opt.R)
  e_rmag mag (n) Magnitude error in r-band, or blank for upper limit (magerr_r) (stat.error;phot.mag)
  zmag mag (n) Magnitude in z-band (mag_z) (phot.mag;em.opt.I)
  e_zmag mag (n) Magnitude error in z-band, or blank for upper limit (magerr_z) (stat.error;phot.mag)
  W1mag mag (n) Magnitude in WISE band 1 (mag_w1) (phot.mag;em.IR.3-4um)
  e_W1mag mag (n) Magnitude error in WISE band 1, or blank for upper limit (magerr_w1) (stat.error;phot.mag)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  W2mag mag (n) Magnitude in WISE band 2 (mag_w2) (phot.mag;em.IR.4-8um)
  e_W2mag mag (n) Magnitude error in WISE band 2, or blank for upper limit (magerr_w2) (stat.error;phot.mag)
  W3mag mag (n) Magnitude in WISE band 3 (mag_w3) (phot.flux.density;em.IR.8-15um)
  e_W3mag mag (n) Magnitude error in WISE band 3, or blank for upper limit (magerr_w3) (stat.error;phot.mag)
  W4mag mag (n) Magnitude in WISE band 4 (mag_w4) (phot.flux.density;em.IR.15-30um)
  e_W4mag mag (n) Magnitude error in WISE band 4, or blank for upper limit (magerr_w4) (stat.error;phot.mag)
  r_WISE (char) Origin of the WISE measurements (WISE_Src) (Note 3)   (meta.ref;pos.frame)
  logMass [Msun] (n) Source host galaxy stellar mass estimate estimate (Mass_median) (phys.mass)
  b_logMass [Msun] (n) 68% lower confidence bound on mass (Mass_l68) (phys.mass)
  B_logMass [Msun] (n) 68% upper confidence bound on mass (Mass_u68) (phys.mass)
  gmagrest mag (n) Rest-frame g-band magnitude from SED fit (g_rest) (phot.mag;meta.modelled)
  rmagrest mag (n) Rest-frame r-band magnitude from SED fit (r_rest) (phot.mag;meta.modelled)
  zmagrest mag (n) Rest-frame z-band magnitude from SED fit (z_rest) (phot.mag;meta.modelled)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Umagrest mag (n) Rest-frame U-band magnitude from SED fit (U_rest) (phot.mag;em.opt.U)
  Vmagrest mag (n) Rest-frame V-band magnitude from SED fit (V_rest) (phot.mag;em.opt.V)
  Jmagrest mag (n) Rest-frame J-band magnitude from SED fit (J_rest) (phot.mag;em.IR.J)
  Kmagrest mag (n) Rest-frame K-band magnitude from SED fit (K_rest) (phot.mag;em.IR.K)
  W1magrest mag (n) Rest-frame WISE band-1 magnitude from SED fit (w1_rest) (phot.mag;em.IR.K)
  W2magrest mag (n) Rest-frame WISE band-1 magnitude from SED fit (w2_rest) (phot.mag;meta.modelled)
  r50 arcsec (n) Half-light radius of Legacy optical exponential/DeVaucouleurs/composite model (r_50) (phys.angSize;src)
  e_r50 arcsec (n) 1-sigma uncertainty on r_50 (r50err) (stat.error)
  q_logMass   [0/1] 1 if a mass is measured and reliable (flag_mass) (meta.code.qual;phys.mass)

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