2020/12/31 by Javier F. Acevedo, Joseph Bramante, Alan Goodman +2 · 54 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Black hole (networking) #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Hawking radiation #Hot dark matter #Micro black hole #Neutrino #Observable #Primordial black hole #Scalar field dark matter #Solar mass #astro-ph.HE #hep-ex #hep-ph
paper · pdf · doi:10.1088/1475-7516/2021/04/026
published in Journal of Cosmology and Astroparticle Physics 2021(04), 026 (Institute of Physics) · 40 pages, 12 figures, JCAP version
openalex created_date 2020/12/21 · openalex publication_date 2021/04/01 · arxiv created 2021/05/11 · arxiv updated 2021/05/13 · openalex updated_date 2026/08/05
Abstract Dark matter can be captured by celestial objects and accumulate at their centers, forming a core of dark matter that can collapse to a small black hole, provided that the annihilation rate is small or zero. If the nascent black hole is big enough, it will grow to consume the star or planet. We calculate the rate of dark matter accumulation in the Sun and Earth, and use their continued existence to place novel constraints on high mass asymmetric dark matter interactions. We also identify and detail less destructive signatures: a newly-formed black hole can be small enough to evaporate via Hawking radiation, resulting in an anomalous heat flow emanating from Earth, or in a flux of high-energy neutrinos from the Sun observable at IceCube. The latter signature is entirely new, and we find that it may cover large regions of parameter space that are not probed by any other method.