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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/ApJS/253/19
  Halpha and other EWs of LAMOST M-type stars (Zhang+, 2021)
Post annotation
img(gal)
1.J/ApJS/253/19/mstars(c)Parameters of M stars catalog observed in LAMOST low-resolution spectral survey DR7 (Tables 2 and 3) (738476 rows)
2.J/ApJS/253/19/table5(c)Parameters 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)
3.J/ApJS/253/19/table6(c)Parameters of M stars catalog with repeated LAMOST low-resolution observations (85992 rows)
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Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
   (ALL)_DE deg (i) Positions from LAMOST names (declination part) (pos.eq.dec;meta.main)
  (1)DR4+5 (char) Display the LAMOST DR4 (V/153) and DR5 (V/164) data within 0.5" (meta.ref.url)
  (1)E (char) Hα activity criteria; (Y)es or (N)o (meta.code)
  (1)e_EWCaH 0.1nm (n) [0.003/996907] Uncertainty in EWCaH (stat.error)
  (1)e_EWCaH1 0.1nm (n) [0/970780] Uncertainty in EWCaH1 (stat.error)
  (1)e_EWCaH2 0.1nm (n) [0/99769] Uncertainty in EWCaH2 (stat.error)
  (1)e_EWCaH3 0.1nm (n) [0/42079819] Uncertainty in EWCaH3 (stat.error)
  (1)e_EWCaII-1 0.1nm (n) [0/48926900] Uncertainty in EWCaII-1 (stat.error)
  (1)e_EWCaII-2 0.1nm (n) [0/87080000] Uncertainty in EWCaII-2 (stat.error)
  (1)e_EWCaII-3 0.1nm (n) [0/49267000] Uncertainty in EWCaII-3 (stat.error)
  (1+2)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
  (1)e_EWHb 0.1nm (n) [0/9990] Uncertainty in EWHb (stat.error)
  (1)e_EWHd 0.1nm (n) [0.002/99944] Uncertainty in EWHd (stat.error)
  (1)e_EWHeI 0.1nm (n) [0/9997] Uncertainty in EWHeI (stat.error)
  (1)e_EWHg 0.1nm (n) [0.001/1546892] Uncertainty in EWHg (stat.error)
  (1)e_EWTiO5 0.1nm (n) [0/1316216] Uncertainty in EWTiO5 (stat.error)
  (1)e_gmag mag (n) [0/68] Uncertainty in gmag (stat.error;phot.mag)
  (1)e_imag mag (n) [0/58] Uncertainty in imag (stat.error;phot.mag)
  (1)e_rmag mag (n) [0/37] Uncertainty in rmag (stat.error;phot.mag)
  (1)e_RVel km/s (n) [0/999619] Uncertainty in RVel (stat.error;spect.dopplerVeloc)
  (1)e_umag mag (n) [0/82] Uncertainty in umag (stat.error;phot.mag)
  (1)EWCaH 0.1nm (n) [-9732/93048] CaII H line equivalent width; in Angstrom units (spect.line.eqWidth)
  (1)EWCaH1 0.1nm (n) [-3580/6399] CaH1 molecular line equivalent width; in Angstrom units (spect.line.eqWidth)
  (1)EWCaH2 0.1nm (n) [-1205/730] CaH2 molecular line equivalent width; in Angstrom units (spect.line.eqWidth)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)EWCaH3 0.1nm (n) [-837/1777] CaH3 molecular line equivalent width; in Angstrom units (spect.line.eqWidth)
  (1)EWCaII-1 0.1nm (n) [-815931/77628000] CaII 8498Å line equivalent width; in Angstrom units (spect.line.eqWidth)
  (1)EWCaII-2 0.1nm (n) [-635707/749992000] CaII 8542Å line equivalent width; in Angstrom units (spect.line.eqWidth)
  (1)EWCaII-3 0.1nm (n) [-812/80842] CaII 8662Å line equivalent width; in Angstrom units (spect.line.eqWidth)
  (1+2)EWHa 0.1nm (n) [-984/7873] Hα equivalent width; Angstroms (spect.line.eqWidth)
  (1)EWHb 0.1nm (n) [-945/7740] Hβ line equivalent width; in Angstrom units (spect.line.eqWidth)
  (1)EWHd 0.1nm (n) [-1000/9981] Hδ line equivalent width; in Angstrom units (spect.line.eqWidth)
  (1)EWHeI 0.1nm (n) [-8872/48729] HeI D3 line equivalent width; in Angstrom units (spect.line.eqWidth)
  (1)EWHg 0.1nm (n) [-9397/98764] Hγ line equivalent width; in Angstrom units (spect.line.eqWidth)
  (1)EWTiO5 0.1nm (n) [-900/999995] TiO5 molecular line equivalent width; in Angstrom units (spect.line.eqWidth)
  (1+2)Exp s (n) [500/9000] Exposure time (meta.code)
  (1)e_zmag mag (n) [0/59] Uncertainty in zmag (stat.error;phot.mag)
  (1)f_EWCaH (char) Activity flag for EWCaH (Note 1)   (meta.code)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)f_EWCaII-1 (char) Activity flag for EWCaII-1 (meta.code)
  (1)f_EWCaII-2 (char) Activity flag for EWCaII-2 (meta.code)
  (1)f_EWCaII-3 (char) Activity flag for EWCaII-3 (meta.code)
  (1)f_EWHb (char) Activity flag for EWHb (Note 1)   (meta.code)
  (1)f_EWHd (char) Activity flag for EWHd (Note 1)   (meta.code)
  (1)f_EWHeI (char) Activity flag for EWHeI (meta.code)
  (1)f_EWHg (char) Activity flag for EWHg (Note 1)   (meta.code)
  (1)gmag mag (n) [7.9/36.1] Apparent SDSS g band AB magnitude (phot.mag;em.opt.B)
  (1)Height 0.1nm (n) [0/1104] Height of Hα (spect.line;em.line.Halpha)
  (1)HJD d (n)(i) [55858.8/58643.11] Heliocentric Julian Date of observation; HJD-2400000 (Note G1)   (time.epoch)
  (1)imag mag (n) [6.1/37.6] Apparent SDSS i band AB magnitude (phot.mag;em.opt.I)
   (ALL)LAMOST (char) (i) LAMOST identifier (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  (1)MR  (n)Number of medium resolution measurements for this star (link to Table 5) (meta.ref.url)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Np  (n)Number of repeated low resolution measurements for this star (meta.ref.url)
   (ALL)_RA deg (i) Positions from LAMOST names (right ascension part) (pos.eq.ra;meta.main)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)rmag mag (n) [6.5/31.1] Apparent SDSS r band AB magnitude (phot.mag;em.opt.R)
  (1)RVel km/s (n) [-9999/93341] Radial velocity (phys.veloc;pos.heliocentric)
  (1)SDSS (char) SDSS DR 12 identifier (JHHMMSS.ss+DDMMSS.s) (meta.id)
  (1)Sloan (char) Display the online SDSS-DR14 data for the nearest object (meta.ref.url)
  (1)SNHa  (n) [-753/9856] Signal to noise of Hα line (stat.snr)
  (1)SNr   [-9999/999] Signal to noise in r filter (stat.snr)
   (ALL)SpT (char) Spectral type (src.spType)
  (1)umag mag (n) [10.3/32.6] Apparent SDSS u band AB magnitude (phot.mag;em.opt.U)
  (1)zmag mag (n) [5/32.6] Apparent SDSS z band AB magnitude (phot.mag;em.opt.I)
  (2)Em (char) [Y/N] Emission of Hα line? (No=absorption) (meta.code)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)HJD min (n) [83555758/84454742] Heliocentric Julian Date in minutes (time.epoch)
  (2)L (char) [Y/N] Hα variation on long time scale? (meta.code)
  (2)LR  (n)Display low resolution measurements for this star (meta.ref.url)
  (2)S (char) [Y/N] Hα variation on short time scale? (meta.code)
  (2)SN   [0/999] Signal to noise ratio (stat.snr)
  (3)Diff   [0/1360] The EWHa-Max - EWHa-Min difference (spect.line.eqWidth;arith.diff)
  (3)e_Diff   [0.002/8928] Uncertainty in Diff (stat.error;arith.diff)
  (3)e_EWHa-Max 0.1nm [0/8484] Uncertainty in EWHa-Max (stat.error)
  (3)e_EWHa-Min 0.1nm [0/8928] Uncertainty in EWHa-Min (stat.error)
  (3)EWHa-Max 0.1nm [-86/1363] Maximum Hα equivalent width; in Angstrom units (spect.line.eqWidth;stat.max;em.line.Halpha)
  (3)EWHa-Min 0.1nm [-498/318] Minimum Hα equivalent width; in Angstrom units (spect.line.eqWidth;stat.min;em.line.Halpha)
  (3)Ratio   [-79107/24178] The EWHa-Max/EWHa-Min ratio (spect.line.eqWidth;arith.diff)
  (3)Rep   [2/30] The repeated number of objects (meta.number)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (3)Seq   [1/85992] Internal object number (meta.id)
  (3)Var (char) [Yes/No ] Variation of Hα line? (meta.code;src.var)

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