VizieR

CfA VizieR . ADAC VizieR . CADC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR . Beijing (Ch) VizieR . Hawai VizieR

Catalog Selection Page

Looking for catalogs ..
Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:

  
Target dimension:

Radius Box size

  
J/other/NewA/16.503
 2MASS observation of BL Lac objects II. (Mao+, 2011)
Post annotation
img(gal)
1.J/other/NewA/16.503/table12MASS observational data of 833 BL Lacs (833 rows)

 
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. (meta.record)
  Seq  Sequential number (meta.record)
  Name (char) Source name (meta.id;meta.main)
  z  (n) Confirmed redshift or lower limit (src.redshift)
  l_z (char) [a] a if redshift lower limit (meta.code.error;src.redshift)
  Type (char) Type Source type adopted from the VV13 (Cat. VII/258) catalog (Note 1)   (src.class)
  FBL? (char) [Y] Y if this BL Lac is in the LAC sample (Fermi-detected BL Lac, FBL) (meta.code)
  NOMAD (char) NOMAD (Cat. I/297) counterpart designation (meta.id)
  2MASS (char) 2MASS (Cat. II/246) counterpart designation (meta.id)
  n_2MASS (char) [*] * when source having more than one 2MASS counterpart (meta.note)
  r1 arcsec Position difference between BL Lac and NOMAD counterpart positions (pos;arith.diff)

ALL cols
    
(n) indicates a possible blank or NULL column  
  r2 arcsec Position difference between BL Lac and 2MASS counterpart positions (pos;arith.diff)
  Jmag mag 2MASS J magnitude (phot.mag;em.IR.J)
  e_Jmag mag (n) rms uncertainty on Jmag (stat.error;phot.mag;em.IR.J)
  Hmag mag 2MASS H magnitude (phot.mag;em.IR.H)
  e_Hmag mag (n) rms uncertainty on Hmag (stat.error;phot.mag;em.IR.H)
  Ksmag mag 2MASS Ks magnitude (phot.mag;em.IR.K)
  e_Ksmag mag (n) rms uncertainty on Ksmag (stat.error;phot.mag;em.IR.K)
  Q2M (char) [ABCDEU] 2MASS quality flags (Note 2)   (meta.code.qual)
  AV mag Interstellar extinction coefficients from NED (phys.absorption)
  n_AV (char) [Sb] Note on AV (Note 3)   (meta.note)
  alf.IR  (n) NIR spectral index α such that Fν∝ν–α (spect.index)
  e_alf.IR  (n) rms uncertainty on alf.IR (stat.error)
  logFp [Hz] (n) Synchrotron peak frequency (em.freq;stat.max)
  r_logFp  (n) Reference for Fpeak (Note 4)   (meta.ref;pos.frame)
  dH  (n) Curvature parameter of the NIR spectrum, δH (stat.fit.param)
  n_dH (char) [c] c for low confidence curvature (meta.note)
  e_dH  (n) rms uncertainty on dH (stat.error)
  NED  ask the NED data-base about this object
  _RA deg Position from 2MASS counterpart (right ascension part) (pos.eq.ra;meta.main)
  _DE deg Position from 2MASS counterpart (declination part) (pos.eq.dec;meta.main)

ALL cols
    
(n) indicates a possible blank or NULL column  
Adapt form
Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  
elapse time 0

Thanks for acknowledging the VizieR Service
Rules of usage of VizieR data

© UDS/CNRS

Contact