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Multi-wavelength detectability of isolated black holes in the Milky Way

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arxiv 2012.10421 v1 pith:BDK7YD77 submitted 2020-12-18 astro-ph.HE

Multi-wavelength detectability of isolated black holes in the Milky Way

classification astro-ph.HE
keywords blackholesastrophysicalgalaxyisolatedcentraldetectabilitymolecular
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Isolated black holes in our Galaxy have eluded detection so far. We present here a comprehensive study on the detectability of isolated stellar-mass astrophysical black holes that accrete interstellar gas from molecular clouds in both the local region and the Central Molecular Zone. We adopt a state-of-the-art model for the accretion physics backed up by numerical simulations, and study the number of observable sources in both the radio and X-ray band, as a function of a variety of parameters. We discuss in particular the impact of the astrophysical uncertainties on our prediction for the number of bright X-ray sources in the central region of the Galaxy. We finally consider future developments in the radio domain, and assess the potential of SKA to detect a population of astrophysical black holes accreting gas in our Galaxy.

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Cited by 1 Pith paper

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

  1. GW231123: A Possible Primordial Black Hole Origin

    astro-ph.CO 2025-08 conditional novelty 6.0

    GW231123's masses and high spins are consistent with primordial black holes that accreted mass and angular momentum in the early universe within the standard PBH framework.