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J/ApJ/655/790/groups Groups of galaxies in 2MASS survey (Crook+, 2007)
Catalog of Groups in the 2MASS Redshift Survey (Low-density-contrast + High-density-contrast, tables 6 and 7 of paper) (2865 rows)
  Group=699, n_Group=L
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200010 03 44.000 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-06 29 05.00 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195010 01 13.903 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-06 14 31.84 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon246.322210 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+37.331280 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
699recno 699  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
n_GroupL  L for Low-density-contrast group, or H for High-density-contrast group (meta.id.part;meta.main)

Group 699  Group number (Note 1)   (meta.id;meta.main)
RAJ200010 03 44.0 "h:m:s" (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000-06 29 05 "d:m:s" (i) Degree of Declination (J2000) (pos.eq.dec;meta.main)
Nm 6  Number of members in Group (Note 2)   (meta.number)
NmS 0  Number of simulated members in Group (meta.number)
Dist 72.48 Mpc Mean (corrected) group distance, assuming h=0.73 (pos.distance;pos.heliocentric)
HV 4979 km/s Mean heliocentric group velocity (spect.dopplerVeloc;stat.mean)
sigma 90.6 km/s Line-of-sight velocity dispersion (phys.veloc.dispersion)
Rp 1.52 Mpc Projected virial radius (phys.size.radius)
logM13.137 [solMass] Log of the virial mass (phys.mass)
logMp13.363 [solMass] Log of the projected mass (phys.mass)
logM/L 1.592 [solMass/solLum]Log of projected mass-to-light ratio (phys.luminosity)
a 59 arcmin Semi-major axis of the ellipse fit (Note 3)   (phys.angSize.smajAxis;meta.modelled)
b/a 0.27   Axis ratio of group ellipse fit (phys.angSize;arith.ratio)
PA 69 deg Semi-major axis position angle (Note 4)   (phys.angSize.smajAxis)
LDC    LDC catalog group number that includes all members of this group (for table7.dat only) (meta.id)
  
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