Constraints on relic magnetic black holes

Diamond, Melissa D.; Kaplan, David E.

doi:10.1007/jhep03(2022)157

Cited by 12 publications

(10 citation statements)

References 81 publications

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“…As indicated in ref. [40], friction between the blobs and the thermal bath strongly suppresses the merger rate. One can reasonably approximate the merger rate by only counting binaries not strongly influenced by friction, those for which…”

Section: Jhep01(2023)136mentioning

confidence: 99%

“…One can imagine models of dense blobs that self-interact through a U(1) charge -either a SM EM charge (though charged dark matter is strongly constrained [19,40,61]) or a dark equivalent. While less general than models that solely interact through gravity, these are worth considering because they merge more quickly than their uncharged counterparts.…”

Section: Charged Blobsmentioning

confidence: 99%

“…The merger time for q = 1 is derived in ref. [40] for extremal magnetic black holes and is modified here to account for q 1.…”

Section: Charged Blobsmentioning

confidence: 99%

“…This is not for lack of reasonable dark matter models in this mass range. Many have been proposed, including nuclear dark matter [29,[35][36][37][38], stabilized black holes and their remnants [39,40], and exotic compact objects (ECOs) such as boson stars and fermion stars [41], among others [42,43]. This mass range remains largely unexplored because it is difficult to probe.…”

Section: Introductionmentioning

confidence: 99%

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Binary collisions of dark matter blobs

Diamond

Kaplan

Rajendran

2023

J. High Energ. Phys.

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We describe the model-independent mechanism by which dark matter and dark matter structures heavier than ~ 8 × 1011 GeV form binary pairs in the early Universe that spin down and merge both in the present and throughout the Universe’s history, producing potentially observable signals. Sufficiently dense dark objects will dominantly collide through binary mergers instead of random collisions. We detail how one would estimate the merger rate accounting for finite size effects, multibody interactions, and friction with the thermal bath. We predict how mergers of dark dense objects could be detected through gravitational and electromagnetic signals, noting that such mergers could be a unique source of high frequency gravitational waves. We rule out objects whose presence would contradict observations of the CMB and diffuse gamma-rays.

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Section: Jhep01(2023)136mentioning

confidence: 99%

Section: Charged Blobsmentioning

confidence: 99%

“…The merger time for q = 1 is derived in ref. [40] for extremal magnetic black holes and is modified here to account for q 1.…”

Section: Charged Blobsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Binary collisions of dark matter blobs

Diamond

Kaplan

Rajendran

2023

J. High Energ. Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

“…This is not for lack of reasonable dark matter models in this mass range. Many have been proposed, including nuclear dark matter [29,[35][36][37][38], stabilized black holes and their remnants [39,40], and exotic compact objects (ECOs) such as boson stars and fermion stars [41], among others [42,43]. This region of parameter space remains largely unexplored because it is difficult to probe.…”

Section: Introductionmentioning

confidence: 99%

Binary Collisions of Dark Matter Blobs

Diamond¹,

Kaplan²,

Rajendran³

2021

Preprint

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We describe the model-independent mechanism by which dark matter and dark matter structures heavier than ∼ 8 × 10 11 GeV form binary pairs in the early Universe that spin down and merge both in the present and throughout the Universe's history, producing potentially observable signals. Sufficiently dense dark objects will dominantly collide through binary mergers instead of random collisions. We detail how one would estimate the merger rate accounting for finite size effects, multibody interactions, and friction with the thermal bath. We predict how mergers of dark dense objects could be detected through gravitational and electromagnetic signals, noting that such mergers could be a unique source of high frequency gravitational waves. We rule out objects whose presence would contradict observations of the CMB and diffuse gamma-rays.

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On the cosmological abundance of magnetic monopoles

Zhang,

et al. 2024

J. High Energ. Phys.

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We demonstrate that Debye shielding cannot be employed to constrain the cosmological abundance of magnetic monopoles, contrary to what is stated in the previous literature. Current model-independent bounds on the monopole abundance are then revisited for unit Dirac magnetic charge. We find that the Andromeda Parker bound can be employed to set an upper limit on the monopole flux at the level of FM ≲ 5.3 × 10−19cm−2s−1sr−1 for a monopole mass 1013 GeV/c2 ≲ m ≲ 1016 GeV/c2, which is more stringent than the MACRO direct search limit by two orders of magnitude. This translates into stringent constraints on the monopole density parameter ΩM at the level of 10−7˘10−4 depending on the mass. For larger monopole masses the scenarios in which magnetic monopoles account for all or the majority of dark matter are disfavored.

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Constraints on relic magnetic black holes

Cited by 12 publications

References 81 publications

Binary collisions of dark matter blobs

Binary collisions of dark matter blobs

Binary Collisions of Dark Matter Blobs

On the cosmological abundance of magnetic monopoles

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