The luminous galaxies in the halo are also concentrated in a small number of clouds (94% in 7 clouds).

II Zw 96 - a luminous infrared galaxy containing young powerful starburst regions.

NGC 6240 - a luminous infrared galaxy with two nuclei.

The primary galaxy in the cluster is one of the most luminous galaxies known in terms of X-ray emissions.

The group exhibits a relatively small harmonic mean radius (230 40 kpc) due to the concentration at its core of more luminous galaxies.

As suggested by other recent observations, they found that the less luminous galaxies have lower densities of stars but higher densities of dark matter.

That theory holds that luminous galaxies were rare in early times and that they grew from the assembly of smaller building blocks.

Upstairs, the storm still painted luminous galaxies on the skylights.

Most luminous infrared galaxies have recently merged or interacted with another galaxy, and are undergoing a burst of star formation.

More luminous elliptical galaxies have larger central velocity dispersions.