Using super high resolution data from ALMA and the VLA, the authors of this paper resolve star formation in active galaxies — and find that active galactic nuclei are embedded inside central star-forming regions.
In light of new observations, the traditional dusty-torus picture of active galactic nuclei may need revision.
Stars and gas waltz across galactic nuclei as star formation proceeds. Let’s see how well they dance!
Counting the number of galaxies at a given mass in a region of space gives you the number density – something that can be really easily compared to simulations. But do our observations and theory match up? And how does looking out to higher and higher redshifts help us to better understand our Universe…
Quasar PSO J334.2028+01.4075 has a very healthy heart rate of 6.7 beats per decade, or once every 542 days. One explanation is that this guy hosts a pair of supermassive black holes. If true, then the astonishing interpretation of this quasar’s heart rate is that its black holes are only a few orbits away from merging!
Gas in clusters is predicted to cool quickly, but observations suggest otherwise. What prevents the gas from cooling? The authors explore the incidence and impact of heating by active galactic nuclei.