Particle physics today faces the challenge of explaining the mystery of dark matter, the origin
of matter over anti-matter in the Universe, the origin of the neutrino masses, the apparent …

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 …

I present an introduction and topical review on axions as a dark matter candidate. Emphasis
is placed on issues surrounding the cosmology of axion dark matter that are relevant for …

Axions can be copiously produced in localized regions of neutron star magnetospheres
where the ambient plasma is unable to efficiently screen the induced electric field. As these …

Axion dark matter (DM) may efficiently convert to photons in the magnetospheres of neutron
stars (NSs), producing nearly monochromatic radio emission. This process is resonantly …

High-frequency gravitational waves (HFGWs) carry a wealth of information on the early
Universe with a tiny comoving horizon and astronomical objects of small scale but with …

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 …

Exploring dark matter via observations of extreme astrophysical environments--defined here
as heavy compact objects such as white dwarfs, neutron stars, and black holes, as well as …

Ray tracing plays a vital role in black hole imaging, modeling the emission mechanisms of
pulsars, and deriving signatures from physics beyond the Standard Model. In this work we …

The most promising indirect search for the existence of axion dark matter uses radio
telescopes to look for narrow spectral lines generated from the resonant conversion of …