Column information for the table: Cosmicflows-2.1 Distances
Table Description: Release Cosmicflows-2.1; update of Table 1 in Tully et al. 2013, AJ, 146, 86.
ColumnDescription
pgc PGC number
Nest 2MASS group ID
Dist Luminosity distance (weighted average if more than one source)
DM Luminosity distance modulus (weighted average if more than one source)
eD 1 sigma error in fractional distance (from weights if more than one source)
C Distance method: Cepheid Period-Luminosity relation
T Distance method: Tip of the Red Giant Branch from collaboration HST program (Jacobs et al. 2009)
L Distance method: Tip of the Red Giant Branch (literature)
M Distance method: miscellaneous (RR Lyrae, Horizontal Branch, Eclipsing Binary)
S Distance method: Surface Brightness Fluctuation
N Distance method: Supernovae
H Distance method: spiral luminosity-rotation correlation (Tully-Fisher)
F Distance method: E/S0 Fundamental Plane
RAJ Right Ascension (J2000)
DeJ Declination (J2000)
Glon Galactic longitude
Glat Galactic latitude
SGL Supergalactic longitude
SGB Supergalactic latitude
Ty Morphological type; RC3 numeric code
Asfd Reddening at B band from Schlegel et al (1998) dust maps
Btot Total B magnitude from LEDA
Ks 2MASS Ks magnitude, extinction corrected from Huchra et al. 2012 or else Lavaux-Hudson 2011
Vhel Heliocentric velocity
Vgsr Velocity in Galactic standard of rest (circular velocity at Sun of 239 km/s; total velocity 251 km/s toward l=90,b=0)
Vls Velocity in Local Sheet standard of rest (Tully et al. 2008)
Vcmb Velocity in CMB standard of rest (Fixsen et al. 1996)
Vmod Velocity in CMB standard of rest adjusted in accordance with a cosmological model with Omega_matter=0.27 and Omega_Lambda=0.73
Name Common name
Icnt Internal group ID
2Mass Group ID from 2MASS++ catalog of Lavaux & Hudson (2011)
Ndgp Number of galaxies with distance measures in group
Dgp Luminosity distance to group
DMgp Luminosity distance modulus to group
eDgp 1 sigma error in fractional group distance
NV Number of galaxies with positions and velocities in group
Lgp Galactic longitude of group
Bgp Galactic latitude of group
SGLgp Supergalactic longitude of group
SGBgp Supergalactic latitude of group
Tgp Mean galaxy type in group
S_B Total B magnitude summed across all members of group
S_K Total Ks magnitude summed across all members of group
Vhgp Mean heliocentric velocity of group
Vggp Group mean velocity in Galactic standard of rest (circular velocity at Sun of 239 km/s; total velocity 251 km/s toward l=90,b=0)
Vlsgp Group velocity in Local Sheet standard of rest (Tully et al. 2008)
Vcgp Group velocity in CMB standard of rest (Fixsen et al. 1996)
Vmgp Group velocity in CMB standard of rest adjusted in accordance with a cosmological model with Omega_matter=0.27 and Omega_Lambda=0.73
Vrms Group r.m.s. velocity dispersion
GroupName Alternate names for group or cluster