Modern cosmology relies on large numerical simulations. However, creating them requires a lot of memory and computational time. Today’s paper describes a technique that can dramatically decrease the computational cost of simulations – by focusing on the most important parts of the simulation and reducing waste!
In which cosmologists come up with yet another way to ignore pesky systematics – aka astrophysics!
So that’s what happens when astronomers account for magnetic fields!
We discuss a new way to test the cosmological principle using X-ray studies of galaxy clusters in this Astrobite.
Major galaxy mergers are thought to be one of the main ways of producing massive elliptical galaxies. Surprisingly though, some of the most massive galaxies in the local universe have gas disks. Here’s how they might be made.
Tide goes in, dark matter halos come out, today’s authors can simulate that! With separate universe simulations!