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The location of the upper edge of the pair-instability supernovae black hole mass gap
Jeremy Sakstein, Djuna Croon
Gravitational wave observations are beginning to probe the upper edge of the pair-instability supernova (PISN) black hole mass gap, a key prediction of stellar evolution. In this w…
Can GW231123 have a stellar origin?
Djuna Croon, Davide Gerosa, Jeremy Sakstein
The gravitational wave event GW231123 detected by the LIGO interferometers during their fourth observing run features two black holes with source-frame masses of $137^{+23}_{-18} M…
Multi-Generational Black Hole Population Analysis with an Astrophysically Informed Mass Function
Yannick Ulrich, Djuna Croon, Jeremy Sakstein +1
We analyze the population statistics of black holes in the LIGO/Virgo/KAGRA GWTC-3 catalog using a parametric mass function derived from simulations of massive stars experiencing p…
Prediction of Multiple Features in the Black Hole Mass Function due to Pulsational Pair-Instability Supernovae
Djuna Croon, Jeremy Sakstein
Using high-resolution simulations of black hole formation from the direct collapse of massive stars undergoing pulsational pair-instability supernovae (PPISN), we find a new phenom…
Dark Matter Annihilation and Pair-Instability Supernovae
Djuna Croon, Jeremy Sakstein
We study the evolution of heavy stars () undergoing pair-instability in the presence of annihilating dark matter. Focusing on the scenario where the dark matte…
Light Axion Emission and the Formation of Merging Binary Black Holes
Djuna Croon, Jeremy Sakstein
We study the impact of stellar cooling due to light axion emission on the formation and evolution of black hole binaries, via stable mass transfer and the common envelope scenario.…