Dark matter in compact stars

J Bramante, N Raj - Physics Reports, 2024 - Elsevier
WDs and neutron stars are far-reaching and multi-faceted laboratories in the hunt for dark
matter. We review detection prospects of wave-like, particulate, macroscopic and black hole …

The first three seconds: a review of possible expansion histories of the early universe

R Allahverdi, MA Amin, A Berlin, N Bernal… - arxiv preprint arxiv …, 2020 - arxiv.org
It is commonly assumed that the energy density of the Universe was dominated by radiation
between reheating after inflation and the onset of matter domination 54,000 years later …

[HTML][HTML] Snowmass2021 theory frontier white paper: Astrophysical and cosmological probes of dark matter

KK Boddy, M Lisanti, SD McDermott, NL Rodd… - Journal of High Energy …, 2022 - Elsevier
While astrophysical and cosmological probes provide a remarkably precise and consistent
picture of the quantity and general properties of dark matter, its fundamental nature remains …

Mechanisms for primordial black hole production in string theory

O Özsoy, S Parameswaran, G Tasinato… - Journal of Cosmology …, 2018 - iopscience.iop.org
We consider mechanisms for producing a significant population of primordial black holes
(PBHs) within string inspired single field models of inflation. The production of PBHs …

Scattering searches for dark matter in subhalos: neutron stars, cosmic rays, and old rocks

J Bramante, BJ Kavanagh, N Raj - Physical Review Letters, 2022 - APS
In many cosmologies dark matter clusters on subkiloparsec scales and forms compact
subhalos, in which the majority of Galactic dark matter could reside. Null results in direct …

Pulsar timing probes of primordial black holes and subhalos

JA Dror, H Ramani, T Trickle, KM Zurek - Physical Review D, 2019 - APS
Pulsars act as accurate clocks, sensitive to gravitational redshift and acceleration induced by
transiting clumps of matter. We study the sensitivity of pulsar timing arrays (PTAs) to single …

Gravitational dark matter: Free streaming and phase space distribution

MR Haque, D Maity - Physical Review D, 2022 - APS
Gravitational dark matter (DM) is the simplest possible scenario that has recently gained
interest in the early Universe cosmology. In this scenario, DM is assumed to be produced …

Constraints on dark matter from dynamical heating of stars in ultrafaint dwarfs. II. Substructure and the primordial power spectrum

PW Graham, H Ramani - Physical Review D, 2024 - APS
There is a large and growing interest in observations of small-scale structure in dark matter.
We propose a new way to probe dark matter structures in the∼ 10–10 8 M⊙ range. This …

Dark matter freeze-out in a nonrelativistic sector

D Pappadopulo, JT Ruderman, G Trevisan - Physical Review D, 2016 - APS
A thermally decoupled hidden sector of particles, with a mass gap, generically enters a
phase of cannibalism in the early Universe. The Standard Model sector becomes …

Probing small-scale power spectra with pulsar timing arrays

VSH Lee, A Mitridate, T Trickle, KM Zurek - Journal of High Energy Physics, 2021 - Springer
A bstract Models of Dark Matter (DM) can leave unique imprints on the Universe's small
scale structure by boosting density perturbations on small scales. We study the capability of …