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J/AJ/144/93
 Close white dwarf + M dwarf binaries (WD+dM) (Morgan+, 2012)
spectrum
Post annotation
img(gal)
1.J/AJ/144/93/tableParameters for 1756 close WD+dM pairs (1756 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  Seq   [0/1801] Catalog number (meta.id;meta.main)
  SDSS  (n) SDSS DR7/DR8 objid (meta.id)
  MJD  SDSS mjd number (time.epoch)
  Plate  SDSS plate number (meta.id;instr.plate)
  Fiber  SDSS fiberID (meta.note)
  GALEX  (n) GALEX object ID (meta.id)
  UKIDSS  (n) UKIDSS object ID (meta.id)
  RAJ2000 deg SDSS Right ascension (J2000.0) (pos.eq.ra;meta.main)
  DEJ2000 deg SDSS Declination (J2000.0) (pos.eq.dec;meta.main)
  RAgdeg deg (n) GALEX Right ascension (J2000.0) (pos.eq.ra)
  DEgdeg deg (n) GALEX Declination (J2000.0) (pos.eq.dec)

ALL cols
    
(n) indicates a possible blank or NULL column  
  RAudeg deg (n) UKIDSS Right ascension (J2000.0) (pos.eq.ra)
  DEudeg deg (n) UKIDSS Declination (J2000.0) (pos.eq.dec)
  RA2deg deg (n) 2MASS Right ascension (J2000.0) (pos.eq.ra)
  DE2deg deg (n) 2MASS Declination (J2000.0) (pos.eq.dec)
  Mt   [0/9.5] M dwarf spectral type (src.spType)
  WD (char) White dwarf type: DA or DB (src.spType)
  Twd K [6000/100000] Effective temperature of White Dwarf (phys.temperature.effective)
  logg [cm/s2] [5/9] Surface gravity of White Dwarf (phys.gravity)
  Ha   [0/2] Hα Magnetic activity flag (Note 1)   (meta.code)
  EWHa 0.1nm [-330/163] Hα equivalent width (spect.line.eqWidth;em.line.Halpha)
  e_EWHa 0.1nm Error on EWHa (limited to 103 at CDS) (stat.error)
  HaS/N   [-4/108] Hα equivalent width S/N (stat.snr)
  LHa/bol   [-1.e-2/0.08] Hα luminosity relative to bolometric luminosity (phys.luminosity;arith.ratio)

ALL cols
    
(n) indicates a possible blank or NULL column  
  e_LHa/bol  Error on LHa/bol (stat.error)
  VdM km/s [-992/609] M dwarf radial velocity (spect.dopplerVeloc;em.IR.4-8um)
  e_VdM km/s (n) [4/620] Error on Vd (stat.error)
  Vwd km/s [-325/566] WD radial velocity (spect.dopplerVeloc;pos.heliocentric)
  e_Vwd km/s (n) [3/800] Error on Vwd (stat.error)
  Vsys km/s [-450/800] System radial velocity (spect.dopplerVeloc;pos.heliocentric)
  e_Vsys km/s (n) [2/451] Error on Vsys (stat.error)
  Sep AU [0.002/100000] System separation (pos.angDistance)
  e_Sep AU (n) [0.001/] Error on Sep (limited to 105AU ∼ 0.5pc at CDS) (stat.error)
  Per d [0.04/] System orbital period (limited to 106yr at CDS) (time.period)
  D pc (n) [0/11261] Spectroscopic distance (Note 2)   (pos.distance;pos.parallax.spect)
  Z pc (n) [-2407/10441] Height above Galactic plane (pos.cartesian.z;pos.galactic)
  Tc K (n) [6000/91000] WD effective temperature (Note 3)   (phys.temperature.effective)
  e_Tc K (n) [181/6884] Error on Tc (Note 3)   (stat.error)
  loggc [cm/s2] (n) [7.4/9] WD gravity surface (Note 3)   (phys.gravity)
  e_loggc [cm/s2] (n) [0.02/0.9] Error on loggc (Note 3)   (stat.error)
  Mc Msun (n) [0.45/1.21] Estimated WD mass (Note 3)   (phys.mass)
  e_Mc Msun (n) [0.008/0.5] Error on Mc (Note 3)   (stat.error)
  tc Myr (n) [2/2211] Estimated WD cooling time (Note 3)   (time.epoch)
  e_tc Myr (n) [0.1/1609] Error on tc (Note 3)   (stat.error)
  S/Nc  (n) [1.4/108] Estimated signal-to-noise ratio (stat.snr)
  Sp  Interactive spectrum from SDSS (meta.ref.url)
spectrum
  Sloan  Display the SDSS data for this object (meta.ref.url)
  All  Search whole VizieR for known details (meta.ref.url)

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