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Parker Bounds on Monopoles with Arbitrary Charge from Galactic and Primordial Magnetic Fields

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arxiv 2307.07553 v2 pith:FXQ6HPD3 submitted 2023-07-14 hep-ph astro-ph.COgr-qchep-th

Takeshi Kobayashi , Daniele Perri This is my paper · ORCID
classification hep-phastro-ph.COgr-qchep-th
keywords magneticfieldsmonopolesboundschargeconstrainedgalacticprimordial
verification ladder T0 review T1 audit T2 compute T3 formal
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We present a comprehensive study of Parker-type bounds on magnetic monopoles with arbitrary magnetic charge, including minicharged monopoles and magnetic black holes. We derive the bounds based on the survival of galactic magnetic fields, seed magnetic fields, as well as primordial magnetic fields. We find that monopoles with different magnetic charges are best constrained by different astrophysical systems: while monopoles with a Dirac charge are tightly constrained by seed galactic magnetic fields, minicharged monopoles are strongly constrained by primordial magnetic fields, and magnetic black holes by the density of dark matter. We also assess the viability of the various types of monopoles as dark matter, by studying whether they can cluster with galaxies hosting magnetic fields.

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Cited by 4 Pith papers

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

  1. The Euler-Heisenberg action for a $U(1)\times U(1)$ dyon quantum electrodynamics

    hep-th 2026-07 accept novelty 6.5 of 10

    One-loop Euler-Heisenberg Lagrangian for U(1)×U(1) dyon QED produces hybrid refractive indices and vacuum birefringence that reduce exactly to ordinary QED when magnetic charge vanishes.

  2. Constraints on magnetic monopoles from X-ray observations of neutron stars

    astro-ph.HE 2026-08 conditional novelty 6.0 of 10

    X-ray non-detections of old millisecond pulsars constrain the Galactic magnetic-monopole flux to below about 6e-19 cm^-2 s^-1 sr^-1 for QCD-scale catalysis, the strongest bound in the 1e11-1e13 GeV mass range.

  3. Self-Consistent Parker Bound on Magnetic Monopoles

    hep-ph 2026-05 unverdicted novelty 6.0 of 10

    A self-consistent Parker bound on magnetic monopoles is derived using the galactic mean-field dynamo eigenmode and turbulent field seeding and acceleration, producing modified flux limits at low and intermediate masse...

  4. Cosmology-Independent Constraints on Irreducible Magnetic Monopole Background

    hep-ph 2024-12 conditional novelty 6.0 of 10

    Cosmic-ray collisions with interstellar gas create monopoles that would drain galactic magnetic fields, yielding new cosmology-independent Parker-like bounds on light monopoles.

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