Cut from a different cloth: Binary black holes in the mass gap
Gravitational-wave observations of black holes with rare masses may reveal their unique origin stories.
The Black Hole Tango: Kicks and Spins in Hierarchical Mergers
Black hole mergers may have more dance moves than we thought—recoil kicks create intricate spin distributions for black holes from hierarchical mergers.
Giving Stars a Brake
Stars of various temperatures and sizes slow down at different rates– and to different extents. The authors of this paper address this distinction in a regime never before addressed observationally.
GW190412: The first gravitational waves from a lopsided black hole merger
The latest pair of merging black holes announced by LIGO-Virgo, the first made public from their latest observing run, is unlike any seen before.
(s)Pinning down the origins of black hole mergers
All of the black hole mergers we’ve seen so far with LIGO/Virgo have surprised us with their mass-spin relationship. Are we misunderstanding stellar collapse? Or is there something even more exotic going on?
All spun up
A variety of mechanisms cause stars to experience spin evolution. Can we learn about planet formation by pushing spin measurements down to substellar masses?