Dark photon superradiance: Electrodynamics and multimessenger signals
We study the electrodynamics of a kinetically mixed dark photon cloud that forms through
superradiance around a spinning black hole, and design strategies to search for the …
superradiance around a spinning black hole, and design strategies to search for the …
Self-interacting scalar dark matter around binary black holes
JC Aurrekoetxea, J Marsden, K Clough, PG Ferreira - Physical Review D, 2024 - APS
Gravitational waves can provide crucial insights about the environments in which black
holes live. In this work, we use numerical relativity simulations to study the behavior of self …
holes live. In this work, we use numerical relativity simulations to study the behavior of self …
Instability and backreaction of massive spin-2 fields around black holes
WE East, N Siemonsen - Physical Review D, 2023 - APS
A massive spin-2 field can grow unstably around a black hole, giving rise to a potential
probe of the existence of such fields. In this work, we use time-domain evolutions to study …
probe of the existence of such fields. In this work, we use time-domain evolutions to study …
Comparison of Low-Redshift Lyman- Forest Observations to Hydrodynamical Simulations with Dark Photon Dark Matter
Recent work has suggested that an additional≲ 6.9 eV per baryon of heating in the
intergalactic medium is needed to reconcile hydrodynamical simulations with Lyman-α forest …
intergalactic medium is needed to reconcile hydrodynamical simulations with Lyman-α forest …
Methods and prospects for gravitational-wave searches targeting ultralight vector-boson clouds around known black holes
Ultralight bosons are predicted in many extensions to the Standard Model and are popular
dark matter candidates. The black hole superradiance mechanism allows for these particles …
dark matter candidates. The black hole superradiance mechanism allows for these particles …
Numerical analysis of resonant axion-photon mixing
EU Ginés, D Noordhuis, C Weniger, SJ Witte - Physical Review D, 2024 - APS
Many present-day axion searches attempt to probe the mixing of axions and photons, which
occurs in the presence of an external magnetic field. While this process is well understood in …
occurs in the presence of an external magnetic field. While this process is well understood in …
Constraints on fifth forces and ultralight dark matter from OSIRIS-REx target asteroid Bennu
It is important to test the possible existence of fifth forces, as ultralight bosons that would
mediate these are predicted to exist in several well-motivated extensions of the Standard …
mediate these are predicted to exist in several well-motivated extensions of the Standard …
Bounds on ultralight bosons from the Event Horizon Telescope observation of Sgr A
Recent observation of Sagittarius A∗(Sgr A∗) by the Event Horizon Telescope (EHT)
collaboration has uncovered various unanswered questions in black hole (BH) physics …
collaboration has uncovered various unanswered questions in black hole (BH) physics …
Probing ultralight isospin-violating mediators at GW170817
Z Liu, ZW Tang - Journal of High Energy Physics, 2024 - Springer
A bstract Gravitational wave (GW) signals arising from binary neutron star mergers offer new,
sensitive probes to ultralight mediators. Here we analyze the GW signals in the GW170817 …
sensitive probes to ultralight mediators. Here we analyze the GW signals in the GW170817 …
Numerical Analysis of Resonant Axion-Photon Mixing: Part I
EU Ginés, D Noordhuis, C Weniger, SJ Witte - arxiv preprint arxiv …, 2024 - arxiv.org
Many present-day axion searches attempt to probe the mixing of axions and photons, which
occurs in the presence of an external magnetic field. While this process is well-understood in …
occurs in the presence of an external magnetic field. While this process is well-understood in …