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Simple Target
List Of Targets
Fast Xmatch with large catalogs or Simbad
Target
Name (resolved by
Sesame
) or
Position
:
J2000
B1975
B1950
B1900
B1875
B1855
Galactic
Supergal.
Ecl.J2000
Target dimension:
deg
arcmin
arcsec
NB: The epoch used for the query is the original epoch of the table(s)
Radius
Box size
J/ApJ/655/790
23693
Groups of galaxies in 2MASS survey (Crook+, 2007)
ReadMe+ftp
2007ApJ...655..790C
Similar Catalogs
Post annotation
1.
J/ApJ/655/790/large
Large groups (High-density-contrast groups with >=25members, or Low-density-contrast groups with >=50members, tables 8 and 9 of paper)
(Note)
(44 rows)
meta
J/ApJ/655/790/large
Simple Constraint
List Of Constraints
Query by
Constraints
applied on Columns
(
Output Order:
+
-
)
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Column
Constraint
Explain
(
UCD
)
recno
Record number assigned by the VizieR team. Should Not be used for identification.
(
meta.record
)
(
RECORD
)
n_Group
(char)
L
for Low-density-contrast group, or
H
for High-density-contrast group
(
meta.id.part;meta.main
)
(
ID_MAIN:1
)
Group
Group number (
differs from ``group'' LDC/HDC number
)
(Note 1)
(
meta.id;meta.main
)
(
ID_MAIN
)
RAJ2000
"h:m:s"
(i)
Right ascension (J2000)
(
pos.eq.ra;meta.main
)
(
POS_EQ_RA_MAIN
)
DEJ2000
"d:m:s"
(i)
Declination (J2000)
(
pos.eq.dec;meta.main
)
(
POS_EQ_DEC_MAIN
)
Nm
Number of group members (including those generated from the population of the plane)
(
meta.number
)
(
NUMBER
)
NmG
Number of group members derived from the Galactic-plane population
(
meta.number
)
(
NUMBER
)
Dist
Mpc
Mean (corrected) group distance, assuming h=0.73
(
pos.distance;pos.heliocentric
)
(
POS_GAL_HC
)
VG
km/s
Mean heliocentric group velocity
(
spect.dopplerVeloc;stat.mean
)
(
VELOC_MEAN
)
sigma
km/s
Line-of-sight velocity dispersion
(
phys.veloc.dispersion
)
(
VELOC_DISP
)
Rp
Mpc
Projected virial radius
(
phys.size.radius
)
(
PHYS_SIZE_RADIUS_GENERAL
)
logM
[solMass]
Virial mass
(
phys.mass
)
(
PHYS_MASS_MISC
)
logMp
[solMass]
Projected mass
(
phys.mass
)
(
PHYS_MASS_MISC
)
logM/L
[solMass/solLum]
Projected mass-to-light ratio
(
phys.luminosity
)
(
PHYS_MASS/LIGHT
)
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
)
(
ID_ALTERNATIVE
)
Note
(char)
Composition of group based on known galaxy clusters and superclusters
(
meta.note
)
(
NOTE
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
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UCD1+
UCD1
https://cdsannotations.cds.unistra.fr/annotations/vizierTable//
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