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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/817/95
  X-ray observations of HCG galaxies (Tzanavaris+, 2016)
Post annotation
img(gal)
1.J/ApJ/817/95/table1Compact group sample (15 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)
  Cat (char) Catalog identifier (Note G1)   (meta.id;meta.table)
  HCG  Compact group number (HCG or RSCG for #17) (meta.id;meta.main)
  Ng  (n)Number of galaxies in this compact group (meta.number)
  z   [0.008/0.03] Redshift (src.redshift)
  Vel km/s [2364/7026] Velocity from NED (Note 1)   (phys.veloc;pos.heliocentric)
  Dist Mpc [34/102] NED Luminosity Distance (DL) (pos.distance;pos.heliocentric)
  Type (char) Group evolutionary HI type (Note 2)   (src.class)
  ObsID (char) Chandra X-ray observations ID(s) (meta.id;obs)
  Inst (char) Chandra-ACIS array (meta.id;instr)
  Exp ks [12.7/169.2] Exposure time (time.duration;obs.exposure)
  Ref (char) Reference of the X-ray data (Note 3)   (meta.ref;pos.frame)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)
  NED  ask the NED data-base about this object (meta.ref.url)
  _RA deg (n)(i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
  _DE deg (n)(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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usage  Display UCD1+    UCD1  
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