| 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=1126, n_Group=H |
| Column | Value | Explain (UCD) | |
| _RAJ2000 | 20 48 41.600 | "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 | -08 27 21.00 | "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) |
| _RAB1950 | 20 46 00.331 | "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 | -08 38 29.43 | "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) |
| _Glon | 038.885936 | 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 | -29.870848 | 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) |
| 2730recno | 2730 | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) | |
| n_Group | H | L for Low-density-contrast group, or H for High-density-contrast group (meta.id.part;meta.main) | |
| Group | 1126 | Group number (Note 1) (meta.id;meta.main) | |
| RAJ2000 | 20 48 41.6 | "h:m:s" | (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main) |
| DEJ2000 | -08 27 21 | "d:m:s" | (i) Degree of Declination (J2000) (pos.eq.dec;meta.main) |
| Nm | 4 | Number of members in Group (Note 2) (meta.number) | |
| NmS | 0 | Number of simulated members in Group (meta.number) | |
| Dist | 85.39 | Mpc | Mean (corrected) group distance, assuming h=0.73 (pos.distance;pos.heliocentric) |
| HV | 6082 | km/s | Mean heliocentric group velocity (spect.dopplerVeloc;stat.mean) |
| sigma | 110.6 | km/s | Line-of-sight velocity dispersion (phys.veloc.dispersion) |
| Rp | 0.86 | Mpc | Projected virial radius (phys.size.radius) |
| logM | 13.063 | [solMass] | Log of the virial mass (phys.mass) |
| logMp | 13.243 | [solMass] | Log of the projected mass (phys.mass) |
| logM/L | 1.367 | [solMass/solLum] | Log of projected mass-to-light ratio (phys.luminosity) |
| a | 25 | arcmin | Semi-major axis of the ellipse fit (Note 3) (phys.angSize.smajAxis;meta.modelled) |
| b/a | Axis ratio of group ellipse fit (phys.angSize;arith.ratio) | ||
| PA | deg | Semi-major axis position angle (Note 4) (phys.angSize.smajAxis) | |
| LDC | 1422 | LDC catalog group number that includes all members of this group (for table7.dat only) (meta.id) | |
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