Constraining physical parameters in a cosmological survey is often computationally expensive, especially when considering more than one survey at a time. The authors of this paper offer a simple method to reconstruct parameter distributions in a fraction of the time needed for most high-performance computers.
The matter we can see and touch is made of baryons, which we know makes up about 5% of the Universe. But there’s problem: some of that 5% is missing!
The Hubble constant describes the rate at which the universe expands. But different measurements of it yield different results – a problem for the cosmic standard model. Today’s paper discusses new Cepheid observations, which increase the problem – so, are we on the brink of new physics?
The effects of gas are complicated and challenging to simulate. Today’s paper explores a way to account for gas in cosmological simulations without actually including it!
Have you ever wondered how you could build an atom out of a black hole and some bosons? Why of course you have!
We report on Day 4 of the winter AAS meeting in Honolulu, HI.