3 papers
gr-qc2020
Beyond the Standard Model Explanations of GW190521
Jeremy Sakstein, Djuna Croon, Samuel D. McDermott +2
The LIGO/Virgo collaboration has recently announced the detection of a heavy binary black hole merger, with component masses that cannot be explained by standard stellar structure…
gr-qc2020
Modified Gravity and the Black Hole Mass Gap
Maria C. Straight, Jeremy Sakstein, Eric J. Baxter
We pioneer the black hole mass gap as a powerful new tool for constraining modified gravity theories. These theories predict fifth forces that alter the structure and evolution of…
astro-ph.GA2020
A dark matter profile to model diverse feedback-induced core sizes of CDM haloes
Alexandres Lazar, James S. Bullock, Michael Boylan-Kolchin +11
We analyze the cold dark matter density profiles of 54 galaxy halos simulated with FIRE-2 galaxy formation physics, each resolved within of the halo virial radius. These ha…