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/AJ/139/390
  Optically selected BL Lac objects from SDSS-DR7 (Plotkin+, 2010)
ReadMe+ftp
2010AJ....139..390P
Similar Catalogs
Post annotation 		img(gal)
1.J/AJ/139/390/RloudObserved and derived parameters of radio-loud BL Lac candidates (tables 5 and 7 of paper) (637 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. ((unassigned);(unassigned);(unassigned);phys.veloc)
  SDSS (char) SDSS source name (HHMMSS.ss+DDMMSS.s) (Note 1)   ((unassigned);(unassigned);(unassigned);spect.line.veloc;arith)
  RAJ2000 deg Right ascension (J2000) ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);arith)
  DEJ2000 deg Declination (J2000) ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);arith)
  Cl (char) [HL] High or Low-confidence Classification (Note 2)   ((unassigned);phys.veloc.orbital;arith.diff;pos.cartesian)
  NB (char) [NY] Object appears as NED BL Lac object? (Note 3)   ((unassigned);phys.veloc.orbital;arith.diff;pos.eq.dec)
  umag mag SDSS u-band apparent magnitude ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))
  gmag mag SDSS g-band apparent magnitude ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))
  rmag mag SDSS r-band apparent magnitude ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))
  imag mag SDSS i-band apparent magnitude ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))
  zmag mag SDSS z-band apparent magnitude ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))

ALL cols		    
 (i)indexed column
  zsp  (n) Spectroscopic redshift ((unassigned);phys.veloc.orbital;arith.diff;pos.parallax;meta.main)
  q_zsp (char) [LRTU] Redshift reliability (Note 4)   ((unassigned);phys.veloc.orbital;arith.diff;pos.cartesian)
  C  (n) CaII H/K break strength ((unassigned);phys.veloc.orbital;arith.diff;phys.atmol.qn.I;meta.main)
  alpha  Optical spectral index referenced at 616.5nm {alpha}{nu} ((unassigned);phys.veloc.orbital;arith.diff;phys.abund.Y;meta.main)
  Comments (char) Additional comments (Note 5)   ((unassigned);phys.veloc.orbital;arith.diff;phys.veloc.orbital)
  Sloan  Display the SDSS data for this BL Lac object ((unassigned);phys.veloc.orbital;arith.diff;pos.geocentric)
  zgal  (n) Host galaxy redshift limit (Note 6)   ((unassigned);phys.veloc.orbital;arith.diff;pos.parallax;meta.main)
  FAGN mag AGN component apparent magnitude (Note 7)   ((unassigned);(unassigned);(unassigned);stat.filling)
  logLo [10-7W/Hz]Log AGN component optical specific luminosity (Note 8)   ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);(unassigned);(unassigned))
  f_F1.4 (char) [FNUX] Radio flag, U=upper limit (Note 9)   ((unassigned);phys.veloc.orbital;arith.diff;pos.eq.dec)
  F1.4 mJy (n) Radio flux density at observed-frame 1.4GHz (Note 10)   ((unassigned);(unassigned);(unassigned);phys.atmol.sWeight.nuclear;(unassigned);(unassigned))
  logLr [10-7W/Hz](n) Log radio specific luminosity (Note 11)   ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);stat.interval;(unassigned))
  f_FX (char) [RU] X-ray flag, U=upper limit (Note 12)   ((unassigned);phys.veloc.orbital;arith.diff;pos.eq.dec)
  FX 10-16W/m2Unabsorbed X-ray flux in 10–13erg/scm2 (Note 13)   ((unassigned);phys.veloc.orbital;arith.diff;meta.abstract;(unassigned);(unassigned))
  logLX [10-7W/Hz]Log X-ray specific luminosity (Note 14)   ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);(unassigned);(unassigned))
  a(ro)  (n) Radio-optical spectral index {alpha}ro (Note 15)   ((unassigned);phys.veloc.orbital;arith.diff;phys.abund.Y;meta.main)
  a(oX)  Optical-X-ray spectral index {alpha}oX (Note 16)   ((unassigned);(unassigned);(unassigned);phys.abund.Y;meta.main)
  NED  ask the NED data-base about this object ((unassigned);(unassigned);(unassigned);phys.veloc.dispersion)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  

The following problems were encountered in this VizieR run:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846444030 Where phase=3 and catid=51390390
**** 
**** --POSTGRES MSG db=1
**** 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/VR220152.err (2026-10-27T19:20:29)
-3
-source=J/AJ/139/390/Rloud
-ref=VIZ6ae0f97e35bf8
elapse time 1