VizieR

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VizieR

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J/A+A/602/A100/table2 Merging groups and clusters from the SDSS data (Tempel+, 2017)
Catalog of galaxy groups (88662 rows)
  recno=31243
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200014 31 37.93692528 "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+20 22 31.8685836 "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)
_RAB195014 29 19.39338885 "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+20 35 45.4303992 "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)
_Glon021.89941977367 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+66.14841003433 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)
31243recno 31243  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

GroupID 31243   [1/88662] Group/cluster ID (meta.id;meta.main)
Ngal 7   [2/254] Richness (src.class.richness)
RAJ2000217.908070522 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+20.375519051 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
lambda 30.617170540 deg SDSS survey coordinate, λ (pos.frame)
eta -8.635607027 deg SDSS survey coordinate, η (pos.frame)
Xpos-267.408668 Mpc Cartesian x coordinate (Note G1)   (pos.cartesian.x)
Ypos 446.731701 Mpc Cartesian y coordinate (Note G1)   (pos.cartesian.y)
Zpos -67.845820 Mpc Cartesian z coordinate (Note G1)   (pos.cartesian.z)
zcmb 0.12227052   [0/0.2] Redshift (CMB rest frame) (src.redshift)
Dist.c525.052058 Mpc Comoving distance to group center (Note G1)   (pos.distance)
sig.v 227.883576 km/s rms radial velocity deviation σV (phys.veloc.dispersion)
sig.sky 0.229806 Mpc rms deviation of the distance in plane of sky from group center σsky (Note G1)   (stat.error)
Rmax 0.538069 Mpc Maximum radius of the group (Note G1)   (phys.size.radius;stat.max)
M200 2.2798e+01 10+12Msun Estimated mass of the NFW profile group (phys.mass)
R200 5.7410e-01 Mpc Radius, where mean density is 200 the Universe average density (phys.size.radius)
Lrgroup 2.6544e+01 10+10Lsun Observed luminosity (Note G1)   (phys.luminosity)
w 2.151736   [1/9.1] Weight factor for the group (phys.atmol.weight)
Den1 366.58713301  Environment density: 1.5Mpc (Note G2)   (src.density)
Den2 74.55502645  Environment density: 3Mpc (Note G2)   (src.density)
Den4 17.80217324  Environment density: 6Mpc (Note G2)   (src.density)
Den8 7.23888478  Environment density: 10Mpc (Note G2)   (src.density)
DnearestCl 1.683892 Mpc Distance to the nearest cluster (pos.distance)
IDnearestCl 31244  ID of the nearest cluster (meta.id.parent)
IDmerger 0  ID of the group in merger catalog (meta.id.parent)
  
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