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J/AJ/141/97
 SDSS DR7 M dwarfs (West+, 2011)
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img(gal)
1.J/AJ/141/97/catalogThe catalog of spectroscopic M dwarfs original column names in green (70840 rows)

 
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)
  Plate  SDSS plate number (meta.id;instr.plate)
  MJD  Modified Julian Date of last SDSS spectrum (time.epoch)
  Fiber  SDSS fiberID (meta.note)
  ObjID  SDSS DR7 Object ID (II/294) (meta.id)
  RAJ2000 deg J2000 Right Ascension of SDSS photometric object (pos.eq.ra;meta.main)
  DEJ2000 deg J2000 Declination of SDSS photometric object (pos.eq.dec;meta.main)
  umag mag (n) SDSS u-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.U)
  e_umag mag (n) Mean error on umag (PSFMAGERR) (stat.error;phot.mag;em.opt.U)
  gmag mag (n) SDSS g-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.B)
  e_gmag mag (n) Mean error on gmag (PSFMAGERR) (stat.error;phot.mag;em.opt.B)

ALL cols
    
(n) indicates a possible blank or NULL column  
  rmag mag (n) SDSS r-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.R)
  e_rmag mag (n) Mean error on rmag (PSFMAGERR) (stat.error;phot.mag;em.opt.R)
  imag mag (n) SDSS i-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.I)
  e_imag mag (n) Mean error on imag (PSFMAGERR) (stat.error;phot.mag;em.opt.I)
  zmag mag (n) SDSS z-band magnitude (PSFMAG) (Note 6)   (phot.mag;em.opt.I)
  e_zmag mag (n) Mean error on zmag (PSFMAGERR) (stat.error;phot.mag;em.opt.I)
  Au mag Extinction in u-band (EXTINCTION) (phys.absorption)
  Ag mag Extinction in g-band (EXTINCTION) (phys.absorption)
  Ar mag Extinction in r-band (EXTINCTION) (phys.absorption)
  Ai mag Extinction in i-band (EXTINCTION) (phys.absorption)
  Az mag Extinction in z-band (EXTINCTION) (phys.absorption)
  MJDr d Modified Julian Date of r-band observation (time.epoch)
  RV km/s (n) Radial velocity (spect.dopplerVeloc;pos.heliocentric)

ALL cols
    
(n) indicates a possible blank or NULL column  
  SpT   [0/9] M-type spectral subtype (src.spType)
  W(Ha) 0.1nm Equivalent width of H-α (Å) (EWHA) (spect.line.eqWidth)
  e_W(Ha) 0.1nm Mean error on W(Ha) (EWHAERR) (stat.error)
  HaS/N  S/N ratio near H-α (HASN) (stat.snr)
  Ha/c  ratio of H-α height over the noise in the continuum (HADIFF) (phot.flux.density;arith.ratio)
  W(Hb) 0.1nm Equivalent width of H-β (Å) (EWHB) (spect.line.eqWidth)
  e_W(Hb) 0.1nm Mean error on W(Hb) (EWHBERR) (stat.error)
  HbS/N  S/N ratio near H-β (HBSN) (stat.snr)
  Hb/c  ratio of H-β height over the noise in the continuum (HBDIFF) (phot.flux.density;arith.ratio)
  W(Hg) 0.1nm Equivalent width of H-γ (Å) (EWHG) (spect.line.eqWidth)
  e_W(Hg) 0.1nm Mean error on W(Hg) (EWHGERR) (stat.error)
  HgS/N  (n) S/N ratio near H-γ (HGSN) (stat.snr)
  Hg/c  (n) ratio of H-γ height over the noise in the continuum (HGDIFF) (phot.flux.density;arith.ratio)

ALL cols
    
(n) indicates a possible blank or NULL column  
  W(Hd) 0.1nm Equivalent width of H-δ (Å) (EWHD) (spect.line.eqWidth)
  e_W(Hd) 0.1nm Mean error on W(Hd) (EWHDERR) (stat.error)
  HdS/N  (n) signal-to-noise ratio near H-δ (HDSN) (stat.snr)
  Hd/c  (n) ratio of H-δ height over the noise in the continuum (HDDIFF) (phot.flux.density;arith.ratio)
  W(Ca) 0.1nm Equivalent width of CaII-K (Å)(EWCAK) (spect.line.eqWidth)
  e_W(Ca) 0.1nm Mean error on W(CaK) (EWCAKERR) (stat.error)
  CaS/N  (n) S/N ratio near CaII-K (CAKSN) (stat.snr)
  CA/c  (n) ratio of Ca II K height over the noise in the continuum (CAKDIFF) (phot.flux.density;arith.ratio)
  TiO5 0.1nm (n) TiO band strength from Hammer (Covey et al. 2007AJ....134.2398C) (spect.index)
  e_TiO5 0.1nm (n) Mean error on TiO5 (TIO5ERR) (stat.error)
  CaH1 0.1nm (n) CaH1 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
  e_CaH1 0.1nm (n) Mean error on CaH1 (CAH1ERR) (stat.error)
  CaH2 0.1nm (n) CaH2 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)

ALL cols
    
(n) indicates a possible blank or NULL column  
  e_CaH2 0.1nm (n) Mean error on CaH2 (CAH2ERR) (stat.error)
  CaH3 0.1nm (n) CaH3 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
  e_CaH3 0.1nm (n) Mean error on CaH3 (CAH3ERR) (stat.error)
  TiO1 0.1nm (n) TiO1 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
  e_TiO1 0.1nm (n) Mean error on TiO1 (TIO1ERR) (stat.error)
  TiO2 0.1nm (n) TiO2 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
  e_TiO2 0.1nm (n) Mean error on TiO2 (TIO2ERR) (stat.error)
  TiO3 0.1nm (n) TiO3 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
  e_TiO3 0.1nm (n) Mean error on TiO3 (TIO3ERR) (stat.error)
  TiO4 0.1nm (n) TiO4 band strength (Note 2)   (phys.atmol.collStrength;instr.bandpass)
  e_TiO4 0.1nm (n) Mean error on TiO4 (TIO4ERR) (stat.error)
  TiO5R 0.1nm Reid et al. TiO5 index (TIO5_2) (Note 2)   (spect.index)
  e_TiO5R 0.1nm (n) Mean error on TiO5R (TIO5ERR2) (stat.error)

ALL cols
    
(n) indicates a possible blank or NULL column  
  TiO8 0.1nm (n) TiO8 band strength (Note 2)   (spect.index)
  e_TiO8 0.1nm (n) Mean error on TiO8 (TIO8ERR) (stat.error)
  CaOH 0.1nm (n) CaOH band strength (Note 2)   (phys.atmol.collStrength)
  e_CaOH 0.1nm (n) Mean error on CaOH (CAOHERR) (stat.error)
  pmRA mas/yr (n) Proper Motion in Right Ascension (Note 5)   (pos.pm;pos.eq.ra)
  e_pmRA mas/yr (n)Mean error on pmRA (stat.error;pos.pm;pos.eq.ra)
  pmDE mas/yr (n) Proper Motion in Declination (Note 5)   (pos.pm;pos.eq.dec)
  e_pmDE mas/yr (n)Mean error on pmDE (stat.error;pos.pm;pos.eq.dec)
  NU   [0/2] Number of objects in USNO-B that matched within 1arcsec. (MATCH) (meta.number)
  r22 arcsec Distance to nearest g<22mag neighbor (DIST22) (pos.angDistance)
  Nd  Number of detections (plates on which the object was detected in USNO-B +1) (NFIT) (meta.number)
  Omag mag (n) Recalibrated USNO-B O magnitude (USNO_O) (phot.mag;em.opt.B)
  Bjmag mag (n) Recalibrated Bj magnitude (USNO_J) (phot.mag;em.opt.B)

ALL cols
    
(n) indicates a possible blank or NULL column  
  sigRA mas (n)rms residual for the proper motion fit in RA (stat.fit.residual)
  sigDE mas (n)rms residual for the proper motion fit in Dec (stat.fit.residual)
  RA2deg deg (n) 2MASS right ascension (RA2MASS) (pos.eq.ra)
  DE2deg deg (n) 2MASS declination (DEC2MASS) (pos.eq.dec)
  Jmag mag (n) 2MASS J-band magnitude (phot.mag;em.IR.J)
  e_Jmag mag (n) Mean error on Jmag (stat.error;phot.mag;em.IR.J)
  Hmag mag (n) 2MASS H-band magnitude (phot.mag;em.IR.H)
  e_Hmag mag (n) Mean error on Hmag (stat.error;phot.mag;em.IR.H)
  Kmag mag (n) 2MASS Ks-band magnitude (phot.mag;em.IR.K)
  e_Kmag mag (n) Mean error on Kmag (stat.error;phot.mag;em.IR.K)
  JD2M d (n) Julian Date of 2MASS photometry (MJD_2MASS) (time.epoch)
  Dist pc [12/] Photometric distance to object, see Bochanski et al. 2010AJ....139.2679B (pos.distance;pos.heliocentric)
  Glon deg galactic longitude (LGAL) (pos.galactic.lon)

ALL cols
    
(n) indicates a possible blank or NULL column  
  Glat deg galactic latitude (BGAL) (pos.galactic.lat)
  U km/s (n) Velocity toward Galactic center (Note 4)   (phys.veloc;pos.galactic)
  V km/s (n) Velocity toward Galactic rotation (Note 4)   (phys.veloc.rotat;pos.galactic)
  W km/s (n) Velocity toward North Galactic Pole (Note 4)   (phys.veloc;pos.galactic)
  X pc (n) Galactocentric cartesian position (Note 3)   (pos.distance;pos.galactocentric)
  Y pc (n) Galactocentric cartesian position (Note 3)   (pos.distance;pos.galactocentric)
  Z pc (n) Galactocentric cartesian position (Note 3)   (pos.distance;pos.galactocentric)
  VX km/s (n) Galactocentric cartesian velocity (Note 4)   (phys.veloc;pos.cartesian.x;pos.galactocentric)
  VY km/s (n) Galactocentric cartesian velocity (Note 4)   (phys.veloc;pos.cartesian.x;pos.galactocentric)
  VZ km/s (n) Galactocentric cartesian velocity (Note 4)   (phys.veloc;pos.cartesian.x;pos.galactocentric)
  Rg pc (n) Galactocentric cylindrical coordinate (Rg=sqrt(X2+Y2) (Note 4)   (pos.frame;pos.galactocentric)
  theta rad [-1.57/1.57] Cylindrical coordinate vector angle θ (X=Rg.cosθ) (Note 4)   (pos.posAng)
  VR km/s (n) Velocity in radial direction (Note 4)   (pos.distance;pos.galactocentric)

ALL cols
    
(n) indicates a possible blank or NULL column  
  Vt km/s (n) Velocity in tangential direction (Note 4)   (phys.veloc.transverse)
  q   [0/1] Combination of SDSS quality flags (0=bad; 1=good) (GOODPHOT) (meta.code.qual)
  MHa  (n) [0/1] Magnetic activity state in H-α 1=active (ACTHA) (meta.code)
  MHb  (n) [0/1] Magnetic activity state in H-β 1=active (ACTHB) (meta.code)
  MHg  (n) [0/1] Magnetic activity state in H-γ 1=active (ACTHG) (meta.code)
  MHd  (n) [0/1] Magnetic activity state in H-δ 1=active (ACTHD) (meta.code)
  MCa  (n) [0/1] Magnetic activity state in CaII-K 1=active (ACTCAK) (meta.code)
  LHa/b  Ratio H-α/bolometric luminosity (LHALBOL) (phys.luminosity;arith.ratio)
  e_LHa/b  Mean error on LHa/b (LHALBOLERR) (stat.error)
  LHb/b  Ratio H-α/bolometric luminosity (LHBLBOL) (phys.luminosity;arith.ratio)
  e_LHb/b  Mean error on LHb/b (LHBLBOLERR) (stat.error)
  LHg/b  Ratio H-α/bolometric luminosity (LHGLBOL) (phys.luminosity;arith.ratio)
  e_LHg/b  Mean error on LHg/b (LHGLBOLERR) (stat.error)
  LHd/b  Ratio H-α/bolometric luminosity (LHDLBOL) (phys.luminosity;arith.ratio)
  e_LHd/b  Mean error on LHd/b (LHDLBOLERR) (stat.error)
  LCa/b  (n) Ratio CaII-K/bolometric luminosity (LCAKLBOL) (phys.luminosity;arith.ratio)
  e_LCa/b  (n) Mean error on LCa/b (LCAKLBOLERR) (stat.error)
  zeta  Metallicity proxy ζ (Note 1)   (spect.index)
  e_zeta  Mean error on zeta (stat.error)
  WDM   [0/1] 1=Likely white dwarf/M dwarf candidate from Morgan et al. (2012AJ....144...93M) (meta.code)
  pmOK  (n) [0/1] 1=satisfies proper motion criteria from Munn et al. 2004AJ....127.3034M (GOODPM) (meta.code)
  SDSS7  Details from the SDSS-DR7 (II/294) (meta.ref.url)
  Sloan  Display the SDSS data for this star (meta.ref.url)

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