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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/A+A/557/A81
  XMM-LSS field X-ray sources classification (Melnyk+, 2013)
Post annotation
img(gal)
1.J/A+A/557/A81/table2(c)Parameters of X-ray sources (4206 rows)
2.J/A+A/557/A81/refsReferences (15 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (1)2XLSSd (char) 2XLSSd name (JHHMMSS.s+DDMMSS) (meta.id;meta.main)
  (1)Cl (char) Final classification of the source: AGN, GAL, QSO or STAR (src.class)
  (1)DEJ2000 deg (i) Optical counterpart declination (J2000.0) (pos.eq.dec;meta.main)
  (1)dog   [0/1] 1 = DOG object (Dust Obscured Galaxy) (meta.code)
  (1)HR   [-1/1] Hardness ratio (phot.flux;arith.ratio)
  (1)LXhard 10-7W (n) X-ray luminosity in the hard band (erg/s) (phys.luminosity;em.X-ray)
  (1)LXsoft 10-7W (n) X-ray luminosity in the soft band (erg/s) (phys.luminosity;em.X-ray)
  (1)m_2XLSSd (char) [ab] Multiplicity index on 2XLSSd (meta.code.multip)
  (1)q_zph  Rank of the photometric redshift (Note 4)   (meta.code.qual)
  (1)q_zsp  Rank of the spectroscopic redshift (Note 1)   (meta.code.qual)
  (1)RAJ2000 deg (i) Optical counterpart Right ascension (J2000.0) (pos.eq.ra;meta.main)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)r_zsp (char) Source of the spectroscopic redshift, in refs.dat file (Note 2)   (meta.ref;pos.frame)
  (1)sedCl (char) Classification according to SED (Note 3)   (src.class)
  (1)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)
  (1)spCl (char) Spectral classification: AGN, GAL, GAL/AGN, QSO, QSO2, STAR (src.class)
  (1)zph  (n) Photometric redshift (src.redshift)
  (1)zsp  (n) spectroscopic redshift when available (src.redshift)
  (2)Aut (char) Author's name (meta.bib.author)
  (2)BibCode (char) BibCode (meta.bib.bibcode)
  (2)Com (char) Comments (meta.note)
  (2)Ref  Reference number (meta.id;meta.main)

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