The authors of this paper use modern constraints on reionization to estimate the strength of primordial magnetic fields at high redshift.
Happy July 4th!
Stars form in dense clumps within giant molecular clouds. The authors of this paper find a strong relationship between the gravitational growth of these clumps, and the rate of formation of stars within the clumps.
The smallest building blocks of cosmological structure could be dark matter micro-halos that are tens of Earth masses. Could these halos survive to the current day in our galaxy?
What is the connection between galaxy mass and supermassive black hole occupation?