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arxiv: 2602.15974 · v2 · submitted 2026-02-17 · 🌌 astro-ph.GA · astro-ph.CO

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Stellar microlensing surveys as a probe of Primordial Black Holes: status and prospects

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classification 🌌 astro-ph.GA astro-ph.CO
keywords stellarblackdarkholeslesssimmassmattermicrolensing
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Stellar microlensing surveys are a powerful tool for probing dark matter in the form of planetary and stellar mass compact objects (COs), in particular primordial black holes (PBHs). Under standard assumptions, current observations exclude COs in the mass range $10^{-11} \lesssim M/M_{\odot} \lesssim 10^{4}$ making up all of the dark matter. We provide an overview, aimed at theorists working on PBHs, of the history, theory, observational status, and future prospects of the field.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Microlensing of fast and slow compact objects

    astro-ph.CO 2026-04 unverdicted novelty 7.0

    Microlensing surveys constrain fast and slow compact objects at masses and densities differing by orders of magnitude from dark matter limits due to speed-mass degeneracy in Einstein crossing times.

  2. Primordial Black Holes Formation Beyond the Standard Cosmic QCD Transition

    astro-ph.CO 2026-04 unverdicted novelty 4.0

    The paper reviews primordial black hole formation during the cosmic QCD phase transition in a microscopical model and explores how beyond-Standard-Model physics affects the equation of state and PBH probability distri...