5 citations · 5 across the 1 of their papers we have counts for
7 papers
Radio Line Properties of Axion Dark Matter Conversion in Neutron Stars
R. A. Battye, B. Garbrecht, J. I. McDonald +1
Axions are well-motivated candidates for dark matter. Recently, much interest has focused on the detection of photons produced by the resonant conversion of axion dark matter in ne…
Bending of light in axion backgrounds
Jamie I. McDonald, Luís B. Ventura
In this work we examine refraction of light by computing full solutions to axion electrodynamics. We also allow for the possibility of an additional plasma component. We then speci…
Dynamical Evolution of Gravitational Leptogenesis
Jamie I. McDonald, Graham M. Shore
Radiatively-induced gravitational leptogenesis is a potential mechanism to explain the observed matter-antimatter asymmetry of the universe. Gravitational tidal effects at the quan…
Optical properties of dynamical axion backgrounds
Jamie I. McDonald, Luís B. Ventura
We discuss spectral distortions, time delays and refraction of light in an axion or axion-plasma background. This involves solving the full set of geodesic equations associated to…
Dark matter axion detection in the radio/mm-waveband
Richard A. Battye, Bjoern Garbrecht, Jamie I. McDonald +2
We discuss axion dark matter detection via two mechanisms: spontaneous decays and resonant conversion in neutron star magnetospheres. For decays, we show that the brightness temper…
Axion superradiance in rotating neutron stars
Francesca V. Day, Jamie I. McDonald
It is a well-known fact that compact gravitating objects admit bound state configurations for massive bosonic fields. In this work we describe a new class of superradiant instabili…