Dark matter annihilation

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 44, 2020

Top arXiv papers from Week 44, 2020

This week I cover a rebuttal against the claims of having detected phosphine (possibly connected to life) on Venus, a proposal for solving the core-cusp problem using late-time dark matter oscillations, and how self-interacting dark matter could provide the seeds for the observed supermassive black holes. This week I've found it particularly important to repeat a few important caveats: my covering particular papers does not necessarily mean I endorse the science or the writing style, just that I found the paper particularly interesting (it may even be directly outside my field of research). In other words, your mileage may vary, so don’t forget to take whatever you read here with a grain of salt. One thing I’m starting to do from this week on is to explicitly point out when a certain paper has been signed alphabetically (which is often the case within hep and gr-qc), in an attempt to hopefully give more visibility to early-career physicists whose last name initials, due to no fault of their own, reside in the second half of the alphabet.

Top arXiv papers from Week 39, 2020

Top arXiv papers from Week 39, 2020

This week’s entry is entirely dedicated to dark matter and ways of searching for or constraining its properties which I would define “off the beaten track”, ranging from using the first stars, to black hole shadows, to quantum gravity-inspired theoretical guiding principles. Enjoy!