VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .
CDS

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/204/5
  SDSS DR7 white dwarf catalog (Kleinman+, 2013)
ReadMe+ftp
2013ApJS..204....5K
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/204/5/table2Catalog of white dwarfs (20407 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)
  SDSS (char) SDSS object name (HHMMSS.ss+DDMMSS.s; J2000) (meta.id;meta.main)
  Plate  SDSS plate number (meta.id;instr.plate)
  MJD d SDSS Modified Julian date (time.epoch)
  Fiber  SDSS FiberID (meta.note)
  RAJ2000 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
  SNg   [0.4/90] SDSS g-band signal-to-noise ratio (meta.note)
  umag mag SDSS u band PSF magnitude (red values have a non-zero flag) (phot.mag;em.opt.U)
  e_umag mag Uncertainty in umag (stat.error;phot.mag;em.opt.U)
  f_umag  (n) Photometric flag on umag (1) (edited in hexadecimal (Note)   (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  gmag mag (n) SDSS g band PSF magnitude (red values have a non-zero flag) (phot.mag;em.opt.B)
  e_gmag mag (n) Uncertainty in gmag (stat.error;phot.mag;em.opt.B)
  f_gmag  (n) Photometric flag on gmag (1) (edited in hexadecimal (Note)   (meta.code)
  rmag mag SDSS r band PSF magnitude (red values have a non-zero flag) (phot.mag;em.opt.R)
  e_rmag mag Uncertainty in rmag (stat.error;phot.mag;em.opt.R)
  f_rmag  (n) Photometric flag on rmag (1) (edited in hexadecimal (Note)   (meta.code)
  imag mag SDSS i band PSF magnitude (red values have a non-zero flag) (phot.mag;em.opt.I)
  e_imag mag Uncertainty in imag (stat.error;phot.mag;em.opt.I)
  f_imag  (n) Photometric flag on imag (1) (edited in hexadecimal (Note)   (meta.code)
  zmag mag SDSS z band PSF magnitude (red values have a non-zero flag) (phot.mag;em.opt.I)
  e_zmag mag Uncertainty in zmag (stat.error;phot.mag;em.opt.I)
  f_zmag  (n) Photometric flag on zmag (1) (edited in hexadecimal (Note)   (meta.code)
  f_pm  (n) [1] SDSS proper motion match (1=sucessful match within 1.0") (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  pm mas/yr (n)SDSS proper motion (arcsec/century) (pos.pm)
  pmPA deg (n) [0/360[ SDSS proper motion angle; North through East (pos.pm;pos.posAng)
  Ag mag [0/4.52885] SDSS g band extinction (phys.absorption;em.opt.B)
  GMT "datime" (n)GMT observation data/time (when row 0 of r measurement read) (time.epoch)
  Atype (char) Spectrum autofit code (Note 2)   (src.spType)
  Teff K (n) autofit effective temperature (Note 3)   (phys.temperature.effective)
  e_Teff K (n) Uncertainty in Teff (Note 3)   (stat.error;phys.temperature.effective)
  log(g) [cm/s2] (n) [5/10] autofit log surface gravity (Note 3)   (phys.gravity)
  e_log(g) [cm/s2] (n) Uncertainty in log(g) (Note 3)   (stat.error)
  chi2  (n) [0.28/64.71] autofit χ2 fit measurement (stat.fit.param;meta.modelled)
  m_Nsp (char) "dup-" for duplicate spectra or "uniq" (meta.code.multip)
  Nsp  (n) [0003-2635] Running number of spectrum for one object (when duplicate spectra) (meta.id)
  q_Nsp (char) [a] a=best signal to noise ratio (for duplicate spectra) (meta.code.qual)
  Mass Msun (n) [0.06/1.753] Calculated mass (for clean DAs and DBs only) (phys.mass;meta.modelled)
  e_Mass Msun (n) [0/0.494] Uncertainty in Mass (stat.error;phys.mass)
  Type (char) Human spectral type assigned to this spectrum (src.spType)
  WDcat  (n)Cross-match within 3" with previous SDSS white dwarf catalogs (J/ApJ/607/426 and J/ApJS/167/40) (meta.ref.url)
  DR7  Display the SDSS Photometric Catalog, Release 7 (Cat. II/294) within 1" (meta.ref.url)
  Sloan  Display the SDSS data for this object (meta.ref.url)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)

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