by Richard E. | Jun 23, 2023 | Black Holes and Gravitational Waves, Feature
It has been claimed that black holes naturally grow more massive as the universe expands. We take this surprising proposal at face value and compute its implications for the merger rates of the black hole binaries formed when pairs of massive stars collapse. Bigger...
by Richard E. | Jun 19, 2023 | Dark matter and dark energy
MOND provides an alternative explanation to dark matter for the dynamics of spiral galaxies. We take spiral galaxies from MONDian simulations and construct the dark matter halos needed to explain the stellar accelerations in the disk. We then look at the differences...
