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J/ApJ/655/790
 Groups of galaxies in 2MASS survey (Crook+, 2007)
Post annotation
img(gal)
1.J/ApJ/655/790/largeLarge groups (High-density-contrast groups with ≥25members, or Low-density-contrast groups with ≥50members, tables 8 and 9 of paper) (Note) (44 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)
  n_Group (char) L for Low-density-contrast group, or H for High-density-contrast group (meta.id.part;meta.main)
  Group  Group number (differs from ``group'' LDC/HDC number) (Note 1)   (meta.id;meta.main)
  RAJ2000 "h:m:s" Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" Declination (J2000) (pos.eq.dec;meta.main)
  Nm  Number of group members (including those generated from the population of the plane) (meta.number)
  NmG  Number of group members derived from the Galactic-plane population (meta.number)
  Dist Mpc Mean (corrected) group distance, assuming h=0.73 (pos.distance;pos.heliocentric)
  VG km/s Mean heliocentric group velocity (spect.dopplerVeloc;stat.mean)
  sigma km/s Line-of-sight velocity dispersion (phys.veloc.dispersion)
  Rp Mpc Projected virial radius (phys.size.radius)
  logM [solMass]Virial mass (phys.mass)
  logMp [solMass]Projected mass (phys.mass)
  logM/L [solMass/solLum]Projected mass-to-light ratio (phys.luminosity)
  LDC  (n) Corresponding Group Number from LDC catalog that encompasses all members of this group, in table9.dat only (differs from ``group'' LDC/HDC number) (meta.id)
  Note (char) Composition of group based on known galaxy clusters and superclusters (meta.note)

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