This week’s post covers ultralight axions and galaxy clustering, using heavy elements to probe inelastic dark matter, and constraining primordial black holes from the dynamics of Neptune. Enjoy!
Top arXiv papers from Week 10, 2021
After being “away” a few weeks where I used this blog as a conference diary (see TMCC2021 and A (Hubble) Tension Headache), the usual arXiv posts return, covering primordial black holes as (not) dark matter, difficulties in constructing working and realistic early dark energy models, and biases to parameter constraints from the effect of baryonic feedback on the gravitational lensing of the CMB. Enjoy the read!
Top arXiv papers from Week 45, 2020
Top arXiv papers from Week 18, 2020
This week’s entry features a new proposal by Ed Witten for hunting Planet 9, a study on signatures of scattering between dark energy and visible matter in cosmological observations, and new constraints on light dark matter produced from primordial black hole evaporation. As usual, comments are welcome, and hope you enjoy!
Top arXiv papers from Week 4, 2020
In the fourth installment of my “Top arXiv papers of the week” column you can read about quantum foam, whether GW190425 is the first neutron star-black hole merger ever detected, the H0 tension and strong lensing time delays, how to efficiently parametrize the spacetime around black holes, and finally whether microlensing of quasars might point towards primordial black holes. Also, I will at least try to come up with a nice name for this blog before next week’s column!