Physics
Sunny Vagnozzi
What is the Hubble tension, really? A ...

My thoughts on what the Hubble tension really is, based on George Efstathiou’s “To H0 or not to H0?“, arXiv:2103.08723.

What is the Hubble tension, really? A SH0ES-centric view of the problem

WIMP dark matter

Top arXiv papers from Week 45, 2020

Top arXiv papers from Week 45, 2020

This week I cover whether primordial black holes and WIMPs can provide important contributions to the dark matter density at the same time, constraints on extensions to ΛCDM from KiDS-1000, and a more detailed analysis of the so-called “lensing is low” problem.

Top arXiv papers from Week 23, 2020

Top arXiv papers from Week 23, 2020

This week’s entry discusses the effects of the Hubble constant on the growth of high-redshift supermassive black holes, a new test of General Relativity from galaxy-galaxy lensing and clustering amplitudes, and a new WIMP dark matter production mechanism from conformal or disformal couplings to ultra-light scalars.