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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/ApJS/257/30
  BL Lac morphologies with LoTSS-DR2 144MHz data (Mooney+, 2021)
ReadMe+ftp
2021ApJS..257...30M
Similar Catalogs
[METAcat] [METAcells] [stats]
Post annotation 		img(gal)
1.J/ApJS/257/30/table5Details of the Roma-BZCAT BL Lac (BZB) sample (99 rows) (released 2023-08-16)
[METAtab] [METAcola]

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - ) [METAcola]
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  Name (char) Name (JHHMM+DDMM) (meta.id)
  LoTSS (char) LoTSS DR2 name (ILTJHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  5BZB (char) BZCAT v5 (Cat. VII/274) name (JHHMM+DDMM; <[MML2015] 5BZB JHHMM+DDMMa> in Simbad) (meta.id.cross)
  4FGL (char) 4FGL name (JHHMM.m+DDMM) (meta.id.cross)
  RAJ2000 deg (i) [11.98/356] Right Ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) [18.6/67.7] Declination (J2000) (pos.eq.dec;meta.main)
  zspec   [0.03/0.761] Spectroscopic Redshift (src.redshift)
  Class (char) Class, resolved ("rBZB": 66 occurrences) or "uBZB"=unresolved BZB (src.class)
  Morph (char) Morphology ("Beamed", "Compact" or "Diffuse") (src.morph)
  Stot mJy [0.8/2162] Integrated flux density at 144MHz from LDR2 (phot.flux.density;em.radio.100-200MHz)

ALL cols		    
 (i)indexed column
  e_Stot mJy [0.16/433] Uncertainty in Stot (stat.error)
  Res (char) Flag indicating source resolved ("TRUE") (meta.code.error)
  SGeV ph/cm2/s (n) [7.6e-11/3.8e-8] γ-ray flux from 4LAC (phot.flux.density;em.gamma.hard)
  e_SGeV ph/cm2/s (n) [2.3e-11/3.6e-10] Uncertainty in SGeV (stat.error)
  alpha   [-1.26/1.95] Spectral index, 144-1400MHz with LDR2 and NVSS (spect.index;em.radio.750-1500MHz)
  e_alpha   [0.002/0.4] Uncertainty in alpha (stat.error;pos.eq.ra)
  rho144  (n) [0.02/2.97] Core dominance at 144MHz (see Section 3.2) (phot.flux;arith.ratio)
  e_rho144  (n) [0.004/0.6] Uncertainty in rho144 (stat.error)
  Limit (char) Flag indicating spatial/angular extents are upper limits ("TRUE") (meta.code)
  D kpc [3.7/411] Spatial extent (phys.size.diameter)
  e_D kpc [0.002/136] Uncertainty in D (stat.error)
  phi arcsec [2.68/116] Angular extent (phys.angSize)
  e_phi arcsec [0.002/21] Uncertainty in phi (stat.error)
  L144 W/Hz [5.8e+23/6.5e+26] Radio luminosity (phys.luminosity;em.radio.100-200MHz)
  e_L144 W/Hz [1.1e+23/1.3e+26] L144 uncertainty (stat.error)
  SimbadName (char) (n)Designation understandable by the Simbad data-base (meta.id)

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  
.errorfile=/tmp/V-0.err (2025-08-23T16:28:14)
-2
-source=22570030
-ref=VIZ68a9ec1e2a1dd4
elapse time 0

Options: wopt=0, optS=0, onote=0, opt1=8, opos=0

Contents of error file (/tmp/V-0.err):
-rwxr-xr-x 1 root root 963736 Jun 11 08:12 /srv/httpd/bin/vizier
++++popularity(all): 6.73243e+06 => 6.83
++++popularity(catid=33250255): 3716 => 0.52
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select idori, kwdid, name, explain From METAorigin
....DisplayFile(/srv/httpd/VizieR/=33250255) ****Non-existant file****
----inherit(u=used, h=hidden):
     [u] +source=33250255
     [u] -ref=VIZ68a9ec1e2a1df5
====inherit(): added 0 hidden fields
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select ucdid, name, class, explain From METAucd where ucdid=106
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select ucdid, name, class, explain From METAucd where ucdid=9
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select famid, name, explain From METAfam where famid=581
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select ucdid, name, class, explain From METAucd where ucdid=62
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select famid, name, explain From METAfam where famid=103
----db1_reset(0 'metaviz@----db1_----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select ucdid, name, class, explain From METAucd where ucdid=220
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select famid, name, explain From METAfam where famid=1048
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select ucdid, name, class, explain From METAucd where ucdid=134
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select famid, name, explain From METAfam where famid=124
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select ucdid, name, class, explain From METAucd where ucdid=191
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select famid, name, explain From METAfam where famid=1316
----db1_reset(0 'metaviz@VIZIR')
----db1_query(0 'metaviz@VIZIR'):
[1755966494]   Select famid, name, explain From METAfam where famid=156
----db1_reset(0 'metaviz@VIZIR')
----inherit(u=used, h=hidden):
     [u] +source=22570030
     [u] -ref=VIZ68a9ec1e2a1dd4
====inherit(): added 0 hidden fields
----free temporary files
----db1_close(0 'metaviz@VIZIR')
----db1_close(1 'metaviz@VIZIR')
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