VizieR

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

Catalog

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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/MNRAS/464/553
  SDSS DR7 QSOs spectral doppelgangers (Rochais+, 2017)
ReadMe+ftp
2017MNRAS.464..553R
Similar Catalogs
spectrum
Post annotation 		img(gal)
1.J/MNRAS/464/553/table2The best SDSS DR7 spectral doppelgangers[spectrum] (1272 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)
  SDSS1 (char) SDSS name (HHMMSS.ss+DDMMSS.s) for first QSO (meta.id.part;meta.main)
  Plate1  SDSS plate number for first source of the pair (meta.id)
  Fiber1  SDSS fiber number for first source of the pair (meta.id)
  MJD1 d SDSS MJD number for first source of the pair (meta.id)
  SDSS2 (char) SDSS name (HHMMSS.ss+DDMMSS.s) for second QSO (meta.id.part;meta.main)
  Plate2  SDSS plate number for second source of the pair (meta.id)
  Fiber2  SDSS fiber number for second source of the pair (meta.id)
  MJD2 d SDSS MJD number for second source of the pair (meta.id)
  d  Hyperspace distance between the two spectra (Note 1)   (stat.fit.param)
  DMBH % Difference in black hole mass (Note 2)   (phys.mass;arith.ratio)
  DLcont-CIV % Difference in continuum luminosity at CIV (Note 2)   (phys.luminosity;arith.ratio)
  DL/DLedd % Difference in the Eddington fraction (Note 2)   (phys.luminosity;arith.ratio)
  Sp1  Interactive spectrum from SDSS for QSO1 (meta.ref.url)
spectrum
  Sp2  Interactive spectrum from SDSS for QSO2 (meta.ref.url)
spectrum
  _RA deg (i) Position from first QSO name (right ascension part) (pos.eq.ra;meta.main)
  _DE deg (i) Position from first QSO name (declination part) (pos.eq.dec;meta.main)

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