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arXiv · 2604.00125

Lectures on Light Particles and Compact Objects

Alessandro Lella·Jamie McDonald
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Abstract

This document is based on lectures delivered at a recent COSMIC WISPers COST Action training school in Annecy in September 2025. They examine detection of weakly interacting slim particles (WISPs), specifically axions and high-frequency gravitational waves, with compact objects. These slightly expanded notes focus on searches for axion dark matter and axion-like particles with neutron stars, superradiance, white dwarfs and astrophysical searches for high-frequency gravitational waves. They are accompanied by a set of practical exercises. Comments on these notes are gratefully received.

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Alessandro Lella, Jamie McDonald. 2026-03-31. Lectures on Light Particles and Compact Objects. https://arxiv.org/abs/2604.00125

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