VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN 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/A+A/470/787
  High energy peaked BL Lacs optical spectros. (Piranomonte+, 2007)
ReadMe+ftp
2007A&A...470..787P
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/470/787/table3(c)Positional information (76 rows)
2.J/A+A/470/787/table4*Objects properties (Note) (68 rows)
3.J/A+A/470/787/table6(c)*Featureless sedentary HBL (Note) (39 rows)

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. (meta.record)
   (ALL)Name (char) IAU name (SHBL JHHMMSS.s+DDMMSS or 1RXS JHHMMSS.s+DDMMSS) (meta.id;meta.main)
  (1)RAJ2000 "h:m:s" (i) RASSBSC right ascension (J2000) (pos.eq.ra;meta.main)
  (1)DEJ2000 "d:m:s" (i) RASSBSC declination sign (J2000) (pos.eq.dec;meta.main)
  (1)RA1 "h:m:s" NVSS right ascension (J2000) (pos.eq.ra)
  (1)DE1 "d:m:s" NVSS declination sign (J2000) (pos.eq.dec)
  (1)RA2 "h:m:s" Optical right ascension (J2000) (pos.eq.ra)
  (1)DE2 "d:m:s" Optical declination sign (J2000) (pos.eq.dec)
  (2+3)n_Name (char) [d] d: Sources already classified in literature as BL Lacs (see Paper II, Cat. J/A+A/434/385) (meta.note)
  (2)FX mW/m2 X-ray flux in 0.1-2.4keV band (phot.flux;em.X-ray)
  (2)F20cm mJy Radio flux at 20cm (1.4GHz) (phot.flux.density;em.radio.750-1500MHz)

ALL cols		    
 (i)indexed column
  (2+3)Vmag mag Optical apparent V magnitude (from APM and COSMOS) (phot.mag;em.opt)
  (2+3)z  (n) Redshift (src.redshift)
  (2)u_z (char) [?] Uncertain redshifts flag (meta.code.error;src.redshift)
  (2)alpha  (n) alphaOIIOIII index (spect.index)
  (2)u_alpha (char) [?] Impossible measure flag, [OII]3727 located in noise (meta.code.error;pos.eq.ra)
  (2)CaH+K  (n) CaH+K break (Note 1)   (spect.index)
  (2)u_CaH+K (char) [?] CaH+K break located in noise (meta.code.error)
  (2)e_CaH+K  (n) CaH+K break (stat.error)
  (2)S/N  Signal-to-noise ration (stat.snr)
  (2)l_EW (char) Limit flag on EW (meta.code.error;spect.line.eqWidth)
  (2)EW 0.1nm 2σ upper limit of observed equivalent widths (spect.line.eqWidth;stat.max)
  (3)f_Name (char) [sl] our (s)ample or (l)iterature (meta.code)
  (3)_RA deg (i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
  (3)_DE deg (i) Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)

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