Mergers play an important role in any galaxy’s evolution. A coincidental observation of a quasar and companion galaxy linked by a photoionized gas bridge offers an exclusive look at the merger process at moderate redshift.
When galaxies merge, the super-massive black holes at their center can merge as well. General relativity predicts that the newly merged black hole can, in forming, be kicked with a large velocity out of the galactic center!
Using data from Herschel’s science demonstration field, the authors of this paper investigate the connection between star formation and activity of a galaxy’s central engine.
How do you enrich the ICM at great distances from the BCG? With an AGN!
An investigation of a large sample of type I and II AGN yields a unification scheme based on accretion rate.
We’re starting a new section of Astrobites we’re calling “Glossaries”. The first of these glossaries, on Galaxies and AGN, is now available.