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/MNRAS/495/1252
  Magnetic activity based on LAMOST and Kepler (Zhang+, 2020)
ReadMe+ftp
2020MNRAS.495.1252Z
Similar Catalogs
Post annotation 		img(gal)
1.J/MNRAS/495/1252/table2The EWs of Hα line for LAMOST DR6/DR7 medium-resolution spectra (2091658 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)
  More (char) Link to tables 4, 5 and 6 (meta.ref.url)
  Name (char) (i) Source name (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  RAJ2000 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
  Date "Y:M:D" (n)(i) Observation date (time.epoch;obs)
  MJM min Modified Julian minute (time.epoch)
  S/N  Signal to noise ratio (stat.snr)
  SpType (char) Spectral type (src.spType)
  Prot d (n) Rotation period from Kepler and K2 with the Lomb-Scargle method (time.period)
  EWHa 0.1nm (n) Hα equivalent width (Note G1)   (spect.line.eqWidth)
  e_EWHa 0.1nm Error on EWHa (stat.error)
  Emis (char) [YN] Indicates whether there is emission (meta.code)
  Var (char) [YNO] Indicates whether there is variation ('Y' for yes, 'N' for no, 'O' for one observation) (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  
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