MACHOs Find a New Weight Class to Compete In
In the past decade we have witnessed the rise and fall of primordial black holes as dark matter candidates. Today’s paper summary hints at their return in the coming decade.
Black holes – Do they grow stupendously large?
Black holes come in many different sizes. But is there a mass limit? The authors of today’s paper investigate the possibility of black holes a trillion times as massive as the sun. Surprisingly, they could also help explain the mysterious dark matter!
The Alternative to Dark Matter May be General Relativity Itself
No dark matter, no modified gravitation, just general relativity. Let’s see what we can get in disk galaxies.
Move over neural networks! – A new method for cosmological inference
Should neural networks give up trying to model cosmology and stick to sorting cat photos? Find out in todays post!
The Fault in Our (Unaligned) Stars
If dark matter did not exist, the visible matter in the universe should be able to explain all gravitational phenomena. But can it?
One Dark Matter Profile Please, Hold the Subhaloes
When we observe galaxies and measure their dark matter halos, we exclude subhaloes from the halo’s mass profile. When we simulate haloes, we include them. But what if we didn’t?