Gravitationally Misaligned Ultralight Dark Matter and Implications for Neutron Stars

2024/08/22 by Davoudiasl, Hooman · 1 citation
#Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2408.12667

Abstract

We examine the possibility that dark matter (DM) may be an ultralight scalar that was misaligned via non-minimal coupling to gravity, in the early Universe. For a certain regime of scalar masses, gravitational effects in neutron stars could place interesting bounds on the viable parameter space of the model, even in the absence of non-gravitational interactions between DM and ordinary matter.

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• Demagnifying gravitational lenses as probes of dark matter structures and nonminimal couplings to gravity

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