VizieR

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

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/272/1
  Periodic variable stars from LAMOST DR9 (Qiao+, 2024)
ReadMe+ftp
2024ApJS..272....1Q
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/272/1/table6*Classification results of variable stars for LAMOST DR9 based on LightGBM and XGBoost (Note) (176337 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)
  LAMOST   [101092/914316131] LAMOST DR9 source identifier (meta.id;meta.main)
  ZTF  ZTF DR11 Source identifier (meta.id.cross)
  RAJ2000 deg (i) Right Ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) [-9.3/87] Declination (J2000) (pos.eq.dec;meta.main)
  plx mas (n) [-9/52.1] Gaia DR3 parallax (pos.parallax)
  Per d [0.02/1000] Period, best derived period (Note 1)   (time.period)
  Type (char) Variable source type (Note 2)   (meta.code.class)
  IterStd   [0.0049/2.6] Recalculated standard deviation (Note 3)   (stat.stdev)
  Nobs   [50/1311] Number of observations (meta.number)
  Std   [0.007/2] Magnitude standard deviation (stat.stdev)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Skew (char) Skewness of light curves (stat.fit.param)
  Kurt (char) Kurtosis of the magnitude distribution (stat.fit.param)
  Amp   [0.015/3.1] Amplitude (Note 4)   (src.var.amplitude)
  chi2   [0.4/29701] χ2 statistic (stat.fit.chi2)
  Cusum   [0.027/2.22] Range of magnitude cumulative sums (Note 5)   (stat.param)
  MAD   [0.003/1.7] Median Absolute Deviation (stat.stdev)
  sKurt   [-2.4/1341195100] Small sample kurtosis of the magnitudes (stat.fit.param)
  Eta   [0.01/2.7] Von Neumann statistic, Kim+ (2014, J/A+A/566/A43) (stat.fit.param)
  SWTest   [0.03/1] Shapiro-Wilk normality test statistics (Shapiro & Wilk 1965, doi:10.1093/biomet/52.3-4.591) (stat.fit.param)
  KSVar   [0.2/1] Stetson K statistic (Stetson 1994PASP..106..250S) (src.var.index)
  HMAR   [0.03/24.7] Half magnitude amplitude ratio (Note 6)   (src.var.amplitude;arith.ratio;phot.mag)
  fu1std   [0.006/0.7] Fraction of observations beyond 1 standard deviation (D'Isanto+ 2016MNRAS.457.3119D) (stat.fit.param)
  gskew (char) Median-of-magnitudes based measure of the skew (stat.fit.param)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  MedBRP   [0.006/1] Fraction, photometric points within amplitude/10 of median (Note 7)   (phot;stat.median;arith.ratio)
  f1power   [0/1] f1 power (Note 8)   (stat.fit.param)
  PerAmp   [0.001/0.4] Largest difference, min or max magnitude and median (Note 9)   (meta.note)
  BP-RP mag (n) [-0.6/7.6] Gaia DR3 color, BP-RP (phot.color;em.opt.B;em.opt.R)
  G-BP (char) mag Gaia DR3 color, G-BP (phot.color;em.opt;em.opt.B)
  G-RP mag (n) [-0.5/4.2] Gaia DR3 color, G-RP (phot.color;em.opt;em.opt.R)
  W1-W2 mag [-2.3/2.5] ALLWISE color, W1-W2 (phot.color;em.IR;em.IR)
  W2-W3 mag (n) [-2.8/8.5] ALLWISE color, W2-W3 (phot.color;em.IR;em.IR)
  W1-W3 mag (n) [-2.9/8.5] ALLWISE color, W1-W3 (phot.color;em.IR;em.IR)
  J-Ks mag (n) [-1.3/3.6] 2MASS color, J-Ks (phot.color;em.IR.J;em.IR.K)
  J-H mag (n) [-1.3/2.1] 2MASS color, J-H (phot.color;em.IR.J;em.IR.H)
  H-Ks mag (n) [-1.9/2.6] 2MASS color, H-Ks (phot.color;em.IR.H;em.IR.K)
  C20  (n)Display data from Chen+ 2020 within 0.5" (meta.ref.url)
  DR7  (n)Display data from LAMOST DR7 LRS (V/156) if any (meta.ref.url)
  WISEA  Display data from AllWISE (II/328) within 3" (meta.ref.url)
  2M  Display the 2MASS data (II/246) within 3" (meta.ref.url)
  Gaia  Display the Gaia EDR3 data (I/355) within 3" (meta.ref.url)

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