VizieR

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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/ApJS/207/16
  BL Lac candidates for TeV observations (Massaro+, 2013)
ReadMe+ftp
2013ApJS..207...16M
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/207/16/table2(c)The complete list of TeV-detected BL Lac objects (42 rows)
2.J/ApJS/207/16/table3(c)*The complete list of TBCs selected from the ROMA-BZCAT (Note) (41 rows)
3.J/ApJS/207/16/table4(c)*TBCs all-sky selected from the ROSAT-WISE all-sky surveys (Note) (54 rows)
Help Xmatch is

Simple ConstraintList Of Constraints
 
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. ((unassigned);phys.veloc.orbital;arith.diff;phys.veloc)
  (1+2)BZCat (char) ROMA-BZCAT identification (JHHMM+DDMM; <[MGL2009] BZB JHHMM+DDMM> in Simbad) (Note G1)   ((unassigned);phys.veloc.orbital;arith.diff;spect.line.veloc;arith)
  (1)TeVCat (char) TeVCat name (Note 1)   ((unassigned);phys.veloc.orbital;arith.diff;src.class.color)
   (ALL)WISE (char) WISE name (JHHMMSS.ss+DDMMSS.s) ((unassigned);phys.veloc.orbital;arith.diff;src.class.starGalaxy)
   (ALL)z  (n) ROMA-BZCAT redshift ((unassigned);(unassigned);(unassigned);pos.parallax;meta.main)
   (ALL)u_z (char) [?] Uncertainty flag on z or unknown z ((unassigned);(unassigned);(unassigned);pos.galactic.lon;pos.parallax;meta.main)
  (1+2)FX fW/m2 (n) [1.05,324] ROSAT X-ray flux in the 0.1-2.4keV energy range in units of 10–12erg/cm2/s ((unassigned);phys.veloc.orbital;arith.diff;meta.abstract;(unassigned);(unassigned))
  (1)FTev Crab (n) [0.002,0.64] Archival TeV flux as reported on the TeVCat ((unassigned);phys.veloc.orbital;arith.diff;phys.atmol.sWeight.nuclear;(unassigned);(unassigned))
  (1)2FGL (char) [Yes/No ] Fermi detection in the 2FGL? ((unassigned);phys.veloc.orbital;arith.diff;pos.eq.dec)
   (ALL)[3.4/4.6] mag [0.22,1.01] WISE [3.4]-[4.6] color index ((unassigned);phys.veloc.orbital;arith.diff;pos.healpix;(unassigned);(unassigned);(unassigned))
   (ALL)e_[3.4/4.6] mag [0.03,0.05] [3.4/4.6] uncertainty ((unassigned);(unassigned);(unassigned);time.age;meta.main)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)[4.6/12] mag [1.23,2.66] WISE [4.6]-[12] color index ((unassigned);(unassigned);(unassigned);pos.healpix;(unassigned);(unassigned);(unassigned))
   (ALL)e_[4.6/12] mag [0.02,0.27] [4.6/12] uncertainty ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  (1+2)FIR fW/m2 [0.33,126.47] WISE IR flux in the 3.4-12um energy range in units of 10–12erg/cm2/s ((unassigned);(unassigned);(unassigned);phys.atmol.sWeight.nuclear;(unassigned);(unassigned))
  (1+2)e_FIR fW/m2 [0.05,2.41] FIR uncertainty (phot.color;instr.det.noise;arith.grad;time.age;meta.main)
  (1+2)X/IR  (n) [0.01,43.57] X-ray to IR flux ratio ({Phi}XIR) (Note G2)   ((unassigned);phys.veloc.orbital;arith.diff;meta.abstract;instr.offset)
   (ALL)Simbad (char) ask the Simbad data-base about this object ((unassigned);phys.veloc.orbital;arith.diff;phys.veloc.dispersion)
   (ALL)_RA deg Positions from WISE names (right ascension part) (phot.count;pos.wcs.scale;arith.factor;(unassigned);arith)
   (ALL)_DE deg Positions from WISE names (declination part) ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);arith)
  (2)f_BZCat (char) [*] Not detected at TeV energies (Note 1)   ((unassigned);(unassigned);(unassigned);pos.eq.dec)
  (2)2FGL  (n)Presence of source in 2FGL (Cat. J/ApJS/199/31) ((unassigned);(unassigned);(unassigned);pos.geocentric)
  (2)Gamma  (n) [1.48,2.39] 2FGL {gamma}-ray photon index ((unassigned);(unassigned);(unassigned);pos.eq.dec;phys.abund.Y;meta.main)
  (2)Sel (char) [SCTM,- ] Other selection(s)? (Note 3)   ((unassigned);(unassigned);(unassigned);phys.veloc.dispersion;(unassigned))
  (3)1RXS (char) ROSAT name (JHHMMSS.s+DDMMSS) ((unassigned);(unassigned);(unassigned);spect.line.veloc;arith)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3)OName (char) Other name from literature and NED (NVSS, 6dF or SUMSS) ((unassigned);(unassigned);(unassigned);spect.line.veloc)
  (3)l_[12/22] (char) Limit flag on [12/22] ((unassigned);(unassigned);(unassigned);pos.galactic.lon)
  (3)[12/22] mag [0.77,2.65] WISE [12]-[22] color index ((unassigned);(unassigned);(unassigned);pos.healpix;(unassigned);(unassigned);(unassigned))
  (3)e_[12/22] mag (n) [0.02,0.51] [12/22] uncertainty ((unassigned);(unassigned);(unassigned);time.age;meta.main)
  (3)Rmag mag (n) [0,17.55] USNO-B (Cat. I/284) R-band magnitude (within 3.3") ((unassigned);(unassigned);(unassigned);stat.filling;(unassigned);(unassigned))
  (3)Notes (char) Existence of counterparts and notes (Note 1)   ((unassigned);(unassigned);(unassigned);phys.veloc.orbital)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  

The following problems were encountered in this VizieR run:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846444905 Where phase=3 and catid=22070016
**** 
**** --POSTGRES MSG db=0
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846444905 Where phase=3 and catid=22070016
**** 
**** --POSTGRES MSG db=0
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****ERROR:  invalid page in block 0 of relation base/16403/6104
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR224889.err (2026-10-27T19:35:04)
-3
-source=J/ApJS/207/16
-ref=VIZ6ae0fce936e79
elapse time 1