The Local_Universe database contains the galaxy group catalogue for the local Universe. Groups have been constructed using two datasets: the Two Micron All Sky Survey (2MASS) Redshift Survey (2MRS) and combined dataset, which includes 2MRS data, CosmicFlows-2 survey (CF2), and 2M++ catalogue.
The database contains the following tables:
The group/cluster identification numbers,
groupid, are independent in the 2MRS and combined datasets.
The data in the Local_Universe database have been compiled with the following assumptions about cosmology: the Hubble constant H0 = 67.8 km s-1 Mpc-1, the matter density Ωm = 0.308 and the dark energy density ΩΛ= 0.692.