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/ApJ/764/135
  Spectroscopic redshifts of BL Lac objects (Shaw+, 2013)
ReadMe+ftp
2013ApJ...764..135S
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/764/135/table3BL Lac spectral properties (372 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. (meta.record)
  2FGL (char) 2FGL catalog identifier (JHHMM.m+DDMM) (meta.id;meta.main)
  RAJ2000 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
  Name (char) Source name (JHHMM+DDMM) (meta.id)
  logF [10uJy] log(spectral flux) at ∼598nm (Note 1)   (phot.flux)
  e_logF [10uJy] Uncertainty in logF (stat.error)
  alpha   [-6.5/3] Spectral index α (Note 1)   (spect.index)
  e_alpha  (n) Uncertainty in alpha (stat.error;pos.eq.ra)
  RMag mag (n) [-24.3/-21] Absolute R band magnitude (phys.magAbs;em.opt.R)
  e_RMag mag (n) [0.08/0.4] Uncertainty in RMag (stat.error;phot.mag;em.opt.R)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  z  (n) [0.01/2.5] Spectroscopic redshift (src.redshift)
  u_z (char) Systematic uncertainty flag in z; see text (meta.code.error;src.redshift)
  n_z (char) Redshift method for z (Note 2)   (meta.note)
  zmin  (n) Spectroscopic lower redshift limit (Note 3)   (src.redshift)
  z22.5  (n) Minimum redshift assuming MR=-22.5mag (src.redshift;pos.heliocentric)
  z22.9  (n) Minimum redshift assuming MR=-22.9mag (src.redshift;pos.heliocentric)
  zmax  Spectroscopic upper redshift limit (src.redshift)
  Type (char) Source type (Note 4)   (src.class)
  SED (char) Spectral energy distribution type (Note 5)   (src.spType;instr.bandwidth)
  Tel (char) Telescope used to obtain the data (Note 6)   (instr.setup)
  MJD d Modified Julian Date of the observation (time.epoch)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)
  NED  ask the NED data-base about this object (meta.ref.url)

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:
#***filter(0,9200) not found for column 'logF'
#***filter(0,9200) not found for column 'logF'
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR731749.err (2024-11-01T00:00:10)
-3
-source=J/ApJ/764/135
-ref=VIZ67241a0ab2a65
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