3 papers
astro-ph.CO2026
Stellar Disruption of Axion Minihalos and Consequences for Direct Axion Detection
Ian DSouza
Scenarios such as the QCD axion with the Peccei-Quinn symmetry broken after inflation predict an enhanced matter power spectrum on sub-parsec scales. These theories lead to the for…
astro-ph.CO2025
Enhanced Disruption of Axion Minihalos by Multiple Stellar Encounters in the Milky Way
Ian DSouza, Chris Gordon, John C. Forbes
If QCD axion dark matter formed post-inflation, axion miniclusters emerged from isocurvature fluctuations and later merged hierarchically into minihalos. These minihalos, potential…
astro-ph.GA2025
Semi-analytic Orbits: A Practical Implementation of Lynden-Bell's Planar Orbits and Extension to Vertical Oscillations
John C. Forbes, Michele T. Bannister, Angus Forrest +2
We present a practical implementation of the perturbation theory derived by Lynden-Bell (2015) for describing, to arbitrary precision, the orbit of a particle in an arbitrary spher…