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J/ApJ/853/68
  Multi-epoch VLBA imaging of 20 Tev blazars (Piner+, 2018)
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2018ApJ...853...68P
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/853/68/table2(c)Observed sources (20 rows)
2.J/ApJ/853/68/table5Gaussian models (289 rows)
3.J/ApJ/853/68/table6Apparent component speeds (43 rows)

Simple ConstraintList Of Constraints
 
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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)
  (1)Name (char) Name of the TeV high-frequency-peaked BL Lac (HBL) (meta.id;meta.main)
  (1+2)Comp  (n)Number of component speeds for this source (link to table 6) (meta.number)
   (ALL)BName (char) (i) B1950 name (HHMM+ddd; B1950) (meta.id)
  (1)z   [0.06/0.6] Redshift from TeVCat unless otherwise indicated (src.redshift)
  (1)r_z (char) [a-d, ] Note(s) on z (Note 1)   (meta.ref;pos.frame)
  (1)Img   [4/5] Number of VLBA images (meta.number)
  (1)Date1 "Y:M:D" (n)First epoch of observation (time.epoch)
  (1)Date2 "Y:M:D" (n)Last epoch of observation (time.epoch)
  (1)Ng  (n)Number of Gaussian model data for this source (link to table 5) (meta.number)
  (1)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)NED (char) ask the NED data-base about this object (meta.ref.url)
  (1)_RA deg (i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
  (1)_DE deg (i) Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)
  (2)Epoch yr Epoch of observation (time.epoch)
  (2)Freq GHz [8.4/15.3] Observing frequency (em.freq)
  (2)Flux mJy [0.6/119.3] Component flux density (phot.flux.density;em.radio.6-12GHz)
  (2)Rad mas [0.002/22.3] Radial position of component center (pos.angDistance)
  (2)PA deg [-180/179] Position angle of component center (Note 2)   (pos.posAng)
  (2)Axis mas [0/12.7] Full-width at half maximum of component major axis (phys.angSize.smajAxis)
  (2)Ratio   [0.5/1] Axial ratio of component (phys.size.axisRatio)
  (2)PAmaj deg [-85/88.4] Position angle of major axis (Note 3)   (pos.posAng)
  (2)Type   [0/1] Component type. 0: delta function, 1: Gaussian (meta.code)
  (3)m_BName   [1/5] Component ID (meta.code.multip)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3)Savg mJy [1/25] Mean flux density (phot.flux.density;em.radio)
  (3)ravg mas [0.3/22] Mean separation from core (pos.angDistance;stat.mean)
  (3)e_ravg mas [0.01/0.4] ravg uncertainty (stat.error)
  (3)pm mas/yr [-0.3/0.8] Proper motion (pos.pm)
  (3)e_pm mas/yr [0.005/0.4] pm uncertainty (stat.error)
  (3)beta   [-4.2/8] Apparent speed in units of the speed of light (phys.veloc;arith.diff)
  (3)e_beta   [0.04/4.5] beta uncertainty (stat.error)
  (3)f_beta (char) [a] Flag on beta (Note 1)   (meta.code)
  (3)1sig  (n) [0.1/4.9] 1σ lower limit on the apparent speed if greater than zero (stat.error)
  (3)2sig  (n) [0.1/3.6] 2σ lower limit on the apparent speed if greater than zero (stat.error)

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