VizieR

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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/253/19
  Halpha and other EWs of LAMOST M-type stars (Zhang+, 2021)
ReadMe+ftp
2021ApJS..253...19Z
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/253/19/table5Parameters of M stars catalog from LAMOST medium-resolution survey, the parameter of Hα line and its variations in short and long time scales (80565 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)
  LR  (n)Display low resolution measurements for this star (meta.ref.url)
  LAMOST (char) LAMOST identifier (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  SpT (char) Spectral type (src.spType)
  HJD min (n) [83555758/84454742] Heliocentric Julian Date in minutes (time.epoch)
  Exp s (n) [319/1800] Exposure time (meta.code)
  SN   [0/999] Signal to noise ratio (stat.snr)
  EWHa 0.1nm [-578/571] Equivalent width of Hα; in Angstrom units (meta.code)
  e_EWHa 0.1nm [0/241958] Uncertainty in EWHa (stat.error)
  Em (char) [Y/N] Emission of Hα line? (No=absorption) (meta.code)
  L (char) [Y/N] Hα variation on long time scale? (meta.code)
  S (char) [Y/N] Hα variation on short time scale? (meta.code)
  _RA deg (i) Positions from LAMOST names (right ascension part) (pos.eq.ra;meta.main)
  _DE deg (i) Positions from LAMOST names (declination part) (pos.eq.dec;meta.main)

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