Close encounters of the primordial kind: a new observable for primordial black holes as dark matter

Fuente: arXiv
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Autores principales: Tran, Tung X., Geller, Sarah R., Lehmann, Benjamin V., Kaiser, David I.
Formato: Preprint
Publicado: 2023
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author Tran, Tung X.
Geller, Sarah R.
Lehmann, Benjamin V.
Kaiser, David I.
author_facet Tran, Tung X.
Geller, Sarah R.
Lehmann, Benjamin V.
Kaiser, David I.
contents Primordial black holes (PBHs) remain a viable dark matter candidate in the asteroid-mass range. We point out that in this scenario, the PBH abundance would be large enough for at least one object to cross through the inner Solar System per decade. Since Solar System ephemerides are modeled and measured to extremely high precision, such close encounters could produce detectable perturbations to orbital trajectories with characteristic features. We evaluate this possibility with a suite of simple Solar System simulations, and we argue that the abundance of asteroid-mass PBHs can plausibly be probed by existing and near-future data.
format Preprint
id arxiv_https___arxiv_org_abs_2312_17217
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Close encounters of the primordial kind: a new observable for primordial black holes as dark matter
Tran, Tung X.
Geller, Sarah R.
Lehmann, Benjamin V.
Kaiser, David I.
Cosmology and Nongalactic Astrophysics
Earth and Planetary Astrophysics
High Energy Physics - Phenomenology
Primordial black holes (PBHs) remain a viable dark matter candidate in the asteroid-mass range. We point out that in this scenario, the PBH abundance would be large enough for at least one object to cross through the inner Solar System per decade. Since Solar System ephemerides are modeled and measured to extremely high precision, such close encounters could produce detectable perturbations to orbital trajectories with characteristic features. We evaluate this possibility with a suite of simple Solar System simulations, and we argue that the abundance of asteroid-mass PBHs can plausibly be probed by existing and near-future data.
title Close encounters of the primordial kind: a new observable for primordial black holes as dark matter
topic Cosmology and Nongalactic Astrophysics
Earth and Planetary Astrophysics
High Energy Physics - Phenomenology
url https://arxiv.org/abs/2312.17217