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?
Combining Power by Combining Probes
In which cosmologists come up with yet another way to ignore pesky systematics – aka astrophysics!
Insert Tidal Here: Stretching and Squashing the Universe
Tide goes in, dark matter halos come out, today’s authors can simulate that! With separate universe simulations!
Through the Lens: Milky Matter Magnifies Magellanic Motion
How does one go about detecting dark matter-only structures in the Milky Way? Look at velocity corrections of stars far beyond our galaxy, in the Magellanic clouds!