743 citations · 5.7k across the 86 of their papers we have counts for
9 papers · 1 filter
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…
An Attractive Proposal for Resolving the Hubble Tension: Dynamical Attractors that Unify Early and Late Dark Energy
Omar F. Ramadan, Tanvi Karwal, Jeremy Sakstein
Early dark energy is a promising potential resolution of the Hubble tension. Unfortunately, many models suffer from the need to fine-tune their initial conditions to ensure that th…
Tip of the Red Giant Branch Bounds on the Neutrino Magnetic Dipole Moment Revisited
Noah Franz, Mitchell Dennis, Jeremy Sakstein
We use a novel method to constrain the neutrino magnetic dipole moment () using the empirically-calibrated tip of the red giant branch I-band magnitude that fully accounts for…
Constraining the chameleon-photon coupling with atomic spectroscopy
Benjamin Elder, Jeremy Sakstein
We compute bounds from atomic spectroscopy on chameleon fields that couple to the photon. Chameleons are a wide class of scalar field models that generically lead to screened fifth…
Dark Matter-Induced Stellar Oscillations
Jeremy Sakstein, Ippocratis D. Saltas
It has been hypothesized that dark matter is comprised of ultra-light bosons whose collective phenomena can be described as a scalar field undergoing coherent oscillations. Example…
Impact of Simultaneous Stellar Modeling Uncertainties on the Tip of the Red Giant Branch for Axion-Election Coupling
Mitchell T. Dennis, Jeremy Sakstein
We present a novel method for incorporating the effects of stellar modeling uncertainties into constraints on the axion-electron coupling constant found using the observed calibrat…
Machine Learning the Tip of the Red Giant Branch
Mitchell Dennis, Jeremy Sakstein
A method for investigating the sensitivity of the tip of the red giant branch (TRGB) I band magnitude to stellar input physics is presented.~We compute a grid of 125,00…
Neutrino-Assisted Early Dark Energy is a Natural Resolution of the Hubble Tension
Mariana Carrillo González, Qiuyue Liang, Jeremy Sakstein +1
It has very recently been claimed that the neutrino-assisted early dark energy model -- a promising resolution of the Hubble tension that can ameliorate the theoretical fine-tuning…