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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/AJ/149/158
  The BUD sample. I. L dwarf activity sample (Schmidt+, 2015)
ReadMe+ftp
2015AJ....149..158S
Similar Catalogs
Post annotation 		img(gal)
1.J/AJ/149/158/table6L dwarf Hα detections and emission strength (225 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)
  2MASS (char) 2MASS designation (HHMMSSss+DDMMSSs, J2000) (meta.id;meta.main)
  SpT (char) Spectral type (src.spType)
  r_EWHa   [1/8] Reference for EWHa (Note 1)   (meta.ref;spect.line.eqWidth;em.line.Halpha)
  l_EWHa (char) [<] Upper limit flag on EWHa (meta.code.error;spect.line.eqWidth;em.line.Halpha)
  EWHa 0.1nm [-1.1/174] Hα equivalent width; in Å (spect.line.eqWidth;em.line.Halpha)
  l_logLHa (char) [<] Upper limit flag on logLHa (meta.code.error;phys.luminosity;em.line.Halpha)
  logLHa [-] [-7/-3.6] Log of Hα luminosity ratio to bolometric luminosity, log(LHα/Lbol) (phys.luminosity;em.line.Halpha;spect.line)
  sigHa  (n) Normalized Hα standard deviation σ(Hα)/<Hα> (stat.stdev;em.line.Halpha)
  Var  (n) [0/20] Fractional variability (Note 2)   (src.var;arith.ratio)
  V (char) Variable? (y=yes or n=no) (meta.code;src.var)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)
  _RA deg (i) Positions from 2MASS name (right ascension part) (pos.eq.ra;meta.main)
  _DE deg (i) Positions from 2MASS name (declination part) (pos.eq.dec;meta.main)

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