An Interacting Galaxy System Along a Filament in a Void

Understand

Cosmological voids provide a unique environment for the study of galaxy formation and evolution.

• The galaxy population in their interior have significantly different properties than average field galaxies.
• As part of our Void Galaxy Survey (VGS), we have found a system of three interacting galaxies (VGS_31) inside a large void.
• VGS_31 is a small elongated group whose members are embedded in a common HI envelope.