M96 Group

The Leo I group, also M66/M96-Gruppe, is a group of galaxies at a distance of about 35 million light-years. How the Local Group and other nearby groups of galaxies, it is one to the Virgo Supercluster The group is in the sky in the constellation Leo, namesake of Latin Leo. The group is divided into two subgroups, the M96 subgroup to the bright galaxies M 95, M96 and M105, and the M66 subgroup, consisting of the so-called Leo Triplet M65, M66 and NGC 3628 essentially. Both subgroups are often performed in the literature as individual groups. Here is the group after Fouqué et al. represented as a common group.

The brightest members of the group are visually 8.9 like bright spiral galaxy M66 and the 9.3 likes bright spiral galaxy M96. Recent distance measurements indicate a mean distance of the group from 10.4 MPC, while other measurements indicate rather a somewhat greater distance. The radial velocity of the group with respect to the cosmic background radiation is 1316 km / s

Investigations under Berücksichtugung numerous newly discovered dwarf galaxies, spread in the M96 subgroup over a radius of about 1.1 million light years, give a dispersion of the radial velocities of 130 km / s These data yield a virial mass of almost 7 × 1012 M ☉, about three times the mass of the Local Group. The inner area around the main bright galaxies of the Local Group, however, has to .. about the mass and mass-luminosity relation

Members

The following table lists the unique identified members of the group after the Nearby Galaxies Catalog, the Lyons Groups of Galaxies Catalog ( LGG ), and the lists. Nearby Optical Galaxy from the sample of Giuricin et al were created. The radial velocities are heliocentric, given the apparent Helligekeiten in the B- band (blue).

In addition, some still NGC 3593, NGC 3628 and IC 2768 are counted as group members.