VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN 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/mstarsParameters of M stars catalog observed in LAMOST low-resolution spectral survey DR7 (Tables 2 and 3) (738476 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)
  MR  (n)Number of medium resolution measurements for this star (link to Table 5) (meta.ref.url)
  LAMOST (char) (i) LAMOST identifier (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  Np  (n)Number of repeated low resolution measurements for this star (meta.ref.url)
  HJD d (n)(i) [55858.8/58643.11] Heliocentric Julian Date of observation; HJD-2400000 (Note G1)   (time.epoch)
  Exp s (n) [500/9000] Exposure time (meta.code)
  SpT (char) Spectral type (src.spType)
  SNr   [-9999/999] Signal to noise in r filter (stat.snr)
  RVel km/s (n) [-9999/93341] Radial velocity (phys.veloc;pos.heliocentric)
  e_RVel km/s (n) [0/999619] Uncertainty in RVel (stat.error;spect.dopplerVeloc)
  SDSS (char) SDSS DR 12 identifier (JHHMMSS.ss+DDMMSS.s) (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  umag mag (n) [10.3/32.6] Apparent SDSS u band AB magnitude (phot.mag;em.opt.U)
  e_umag mag (n) [0/82] Uncertainty in umag (stat.error;phot.mag)
  gmag mag (n) [7.9/36.1] Apparent SDSS g band AB magnitude (phot.mag;em.opt.B)
  e_gmag mag (n) [0/68] Uncertainty in gmag (stat.error;phot.mag)
  rmag mag (n) [6.5/31.1] Apparent SDSS r band AB magnitude (phot.mag;em.opt.R)
  e_rmag mag (n) [0/37] Uncertainty in rmag (stat.error;phot.mag)
  imag mag (n) [6.1/37.6] Apparent SDSS i band AB magnitude (phot.mag;em.opt.I)
  e_imag mag (n) [0/58] Uncertainty in imag (stat.error;phot.mag)
  zmag mag (n) [5/32.6] Apparent SDSS z band AB magnitude (phot.mag;em.opt.I)
  e_zmag mag (n) [0/59] Uncertainty in zmag (stat.error;phot.mag)
  EWHa 0.1nm (n) [-984/7873] Hα equivalent width; Angstroms (spect.line.eqWidth)
  SNHa  (n) [-753/9856] Signal to noise of Hα line (stat.snr)
  e_EWHa 0.1nm (n) [0/9975] Uncertainty in EWHa (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Height 0.1nm (n) [0/1104] Height of Hα (spect.line;em.line.Halpha)
  E (char) Hα activity criteria; (Y)es or (N)o (meta.code)
  EWCaH 0.1nm (n) [-9732/93048] CaII H line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWCaH 0.1nm (n) [0.003/996907] Uncertainty in EWCaH (stat.error)
  f_EWCaH (char) Activity flag for EWCaH (Note 1)   (meta.code)
  EWHb 0.1nm (n) [-945/7740] Hβ line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWHb 0.1nm (n) [0/9990] Uncertainty in EWHb (stat.error)
  f_EWHb (char) Activity flag for EWHb (Note 1)   (meta.code)
  EWHg 0.1nm (n) [-9397/98764] Hγ line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWHg 0.1nm (n) [0.001/1546892] Uncertainty in EWHg (stat.error)
  f_EWHg (char) Activity flag for EWHg (Note 1)   (meta.code)
  EWHd 0.1nm (n) [-1000/9981] Hδ line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWHd 0.1nm (n) [0.002/99944] Uncertainty in EWHd (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  f_EWHd (char) Activity flag for EWHd (Note 1)   (meta.code)
  EWHeI 0.1nm (n) [-8872/48729] HeI D3 line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWHeI 0.1nm (n) [0/9997] Uncertainty in EWHeI (stat.error)
  f_EWHeI (char) Activity flag for EWHeI (meta.code)
  EWCaII-1 0.1nm (n) [-815931/77628000] CaII 8498Å line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWCaII-1 0.1nm (n) [0/48926900] Uncertainty in EWCaII-1 (stat.error)
  f_EWCaII-1 (char) Activity flag for EWCaII-1 (meta.code)
  EWCaII-2 0.1nm (n) [-635707/749992000] CaII 8542Å line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWCaII-2 0.1nm (n) [0/87080000] Uncertainty in EWCaII-2 (stat.error)
  f_EWCaII-2 (char) Activity flag for EWCaII-2 (meta.code)
  EWCaII-3 0.1nm (n) [-812/80842] CaII 8662Å line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWCaII-3 0.1nm (n) [0/49267000] Uncertainty in EWCaII-3 (stat.error)
  f_EWCaII-3 (char) Activity flag for EWCaII-3 (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  EWTiO5 0.1nm (n) [-900/999995] TiO5 molecular line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWTiO5 0.1nm (n) [0/1316216] Uncertainty in EWTiO5 (stat.error)
  EWCaH1 0.1nm (n) [-3580/6399] CaH1 molecular line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWCaH1 0.1nm (n) [0/970780] Uncertainty in EWCaH1 (stat.error)
  EWCaH2 0.1nm (n) [-1205/730] CaH2 molecular line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWCaH2 0.1nm (n) [0/99769] Uncertainty in EWCaH2 (stat.error)
  EWCaH3 0.1nm (n) [-837/1777] CaH3 molecular line equivalent width; in Angstrom units (spect.line.eqWidth)
  e_EWCaH3 0.1nm (n) [0/42079819] Uncertainty in EWCaH3 (stat.error)
  DR4+5  Display the LAMOST DR4 (V/153) and DR5 (V/164) data within 0.5" (meta.ref.url)
  Sloan  Display the online SDSS-DR14 data for the nearest object (meta.ref.url)
  _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)

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