VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
J/ApJS/249/22
  Radial velocity variable stars from LAMOST DR4 (Tian+, 2020)
ReadMe+ftp
2020ApJS..249...22T
Similar Catalogs
timeSerie
Post annotation 		img(gal)
1.J/ApJS/249/22/epochsMeasurements per epoch (extracted from catalog.dat by CDS) (304473 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)
  RAJ2000 deg (i) Right ascension (J2000) (RA) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination (J2000) (DEC) (pos.eq.dec;meta.main)
  JD d (i) Julian Day of exposure of the SpecId (JULS_EPOCH) (time.epoch;obs.exposure)
  SNR  (n) [10/2329] S/N(4650A) per pixel in blue arm of epochs (SNRB_EPOCH) (stat.snr)
  RV km/s (n) [-968/785] Radial Velocity (RV_EPOCH) (phys.veloc;pos.heliocentric)
  e_RV km/s (n) [3/21] RV uncertainty (ERRRVEPOCH) (stat.error)
  logg [cm/s2] (n) [-1.1/6.42] log of surface gravity (LOGG_EPOCH) (phys.gravity)
  e_logg [cm/s2] (n) [0.05/0.42] logg uncertainty (ERRLOGGEPOCH) (stat.error)
  Teff K (n) [3402/23942] Effective temperature (TEFF_EPOCH) (phys.temperature.effective)
  e_Teff K (n) [58/660] Teff uncertainty (ERRTEFFEPOCH) (stat.error;phys.temperature.effective)
  [Fe/H] [-] (n) [-3.7/1.7] Metallicity (FEH_EPOCH) (phys.abund.Z)
  e_[Fe/H] [-] (n) [0.05/0.6] Error of [Fe/H] (ERRFEHEPOCH) (stat.error;phys.abund.Fe)
  [a/Fe] [-] (n) [-0.4/0.8] Abundance [alpha/Fe] (AFE_EPOCH) (phys.abund)
  e_[a/Fe] [-] (n) [0.026/0.3] Error of [alpha/Fe] (ERRAFEEPOCH) (stat.error;phys.abund)

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