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/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/table3The EWs of the Hα line for LAMOST DR5 low-resolution spectra (247378 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)
  Name (char) Source name (LAMOST JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  Date (char) Observation date (time.epoch;obs)
  MJM (char) Modified Julian minute (time.epoch)
  RAJ2000 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
  magType (char) Target magnitude type (meta.code;instr.filter)
  mag1 mag (n) Magnitude on the first band in magType (phot.mag)
  mag2 mag (n) Magnitude on the second band in magType (phot.mag)
  mag3 mag (n) Magnitude on the third band in magType (phot.mag)
  mag4 mag (n) Magnitude on the fourth band in magType (phot.mag)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  mag5 mag (n) Magnitude on the fifth band in magType (phot.mag)
  mag6 mag (n) Magnitude on the sixth band in magType (phot.mag)
  mag7 mag (n) Magnitude on the seventh band in magType (phot.mag)
  SpType (char) Spectral type or object class (src.spType)
  S/Nu  Signal to noise ratio on the u filter (stat.snr)
  S/Ng  Signal to noise ratio on the g filter (stat.snr)
  S/Nr  Signal to noise ratio on the r filter (stat.snr)
  S/Ni  Signal to noise ratio on the i filter (stat.snr)
  S/Nz  Signal to noise ratio on the z filter (stat.snr)
  EWHa 0.1nm (n) Hα equivalent width (Note G1)   (spect.line.eqWidth)
  e_EWHa 0.1nm (n) Error on EWHa (stat.error)
  Emis (char) [YN] Indicates whether there is emission (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  
elapse time 1