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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/ApJ/590/109
  Gamma-ray blazar in northern sky (Sowards-Emmerd+, 2003)
Post annotation
img(gal)
1.J/ApJ/590/109/table1(c)Northern 3EG Objects (158 rows)
2.J/ApJ/590/109/notesIndividual notes on 3EG Objects (143 rows)
3.J/ApJ/590/109/table2(c)New 3EG Counterpart Candidates with Spectroscopic Identification (45 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (1+2)3EG (char) (i) The 3rd EGRET Catalog blazar source name
  (1)f_3EG (char) [:] J1824+3440 modified into J1824+3441
  (1)n_3EG (char) indicates that there is a note in notes.dat file
  (1)u_Names (char) [ibl] Flag on Names (Note 1)   
  (1)S8.4GHz mJy (n) The 8.4GHz flux density
  (1)SpIndex  (n) Spectral index (Note 2)   
  (1+3)FoM  (n) Figure of Merit (Note G1)   
  (1+3)z  (n) Redshift
  (1+2)Note (char) Association and/or redshift note (Note 3)   
  (1)MBlaz (char) [±] Blazar probability from Mattox et al. (2001, Cat. J/ApJS/135/155) (Note 4)   

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)EBlaz (char) [Aa] Blazar confidence from 3EG (Note 5)   
  (1+3)Class (char) Classification (Note G2)   
  (1)3EGdata (char) display all 3EG parameters (Cat. J/ApJS/123/79)
  (1)Simbad (char) ask the Simbad data-base about this object
  (1)_RA deg (i) Position of the 3EG source (from 3EG catalog) (right ascension part) (pos.eq.ra;meta.main)
  (1)_DE deg (i) Position of the 3EG source (from 3EG catalog) (declination part) (pos.eq.dec;meta.main)
  (1)Names (char) Object identifications
  (3)Name (char) Object identification (JHHMM+DDMM)
  (3)RAJ2000 "h:m:s" Right ascension (J2000)
  (3)DEJ2000 "d:m:s" Declination (J2000)
  (3)R2mag mag (n) USNO B1.0 R2 magnitude
  (3)B2mag mag (n) USNO B1.0 B2 magnitude
  (3)u_z (char) Uncertainty flag on z
  (3)n_z (char) [*] indicates new redshifts (other archival ones)

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