Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 177001 |
| Fachzeitschrift | Classical and quantum gravity |
| Jahrgang | 40 |
| Ausgabenummer | 17 |
| Publikationsstatus | Veröffentlicht - 26 Juli 2023 |
Abstract
The end state of Hawking evaporation of a black hole is uncertain. Some candidate quantum gravity theories, such as loop quantum gravity and asymptotic safe gravity, hint towards Planck sized remnants. If so, the Universe might be filled with remnants of tiny primordial black holes, which formed with mass M < 10 9 g. A unique scenario is the case of M ∼ 5 × 10 5 g, where tiny primordial black holes reheat the Universe by Hawking evaporation and their remnants dominate the dark matter (DM). Here, we point out that this scenario leads to a cosmological gravitational wave signal at frequencies ∼100 Hz. Finding such a particular gravitational wave signature with, e.g. the Einstein telescope, would suggest black hole remnants as DM.
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- Physik und Astronomie (sonstige)
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in: Classical and quantum gravity, Jahrgang 40, Nr. 17, 177001, 26.07.2023.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Gravitational wave hints black hole remnants as dark matter
AU - Domènech, Guillem
AU - Sasaki, Misao
N1 - Funding Information: We would like to thank the anonymous referee for the many useful comments. G D thanks A D Rojas, C D Rojas and D Rojas for their support and A Platania for useful correspondence on black holes in asymptotic safe gravity. We also thank P Bari and I Markin for useful comments on the paper. G D is supported by the DFG under the Emmy-Noether program Grant No. DO 2574/1-1, Project Number 496592360. Kavli IPMU is supported by World Premier International Research Center Initiative (WPI), MEXT, Japan. This work was supported in part by the JSPS KAKENHI Grant Nos. 19H01895, 20H04727, and 20H05853.
PY - 2023/7/26
Y1 - 2023/7/26
N2 - The end state of Hawking evaporation of a black hole is uncertain. Some candidate quantum gravity theories, such as loop quantum gravity and asymptotic safe gravity, hint towards Planck sized remnants. If so, the Universe might be filled with remnants of tiny primordial black holes, which formed with mass M < 10 9 g. A unique scenario is the case of M ∼ 5 × 10 5 g, where tiny primordial black holes reheat the Universe by Hawking evaporation and their remnants dominate the dark matter (DM). Here, we point out that this scenario leads to a cosmological gravitational wave signal at frequencies ∼100 Hz. Finding such a particular gravitational wave signature with, e.g. the Einstein telescope, would suggest black hole remnants as DM.
AB - The end state of Hawking evaporation of a black hole is uncertain. Some candidate quantum gravity theories, such as loop quantum gravity and asymptotic safe gravity, hint towards Planck sized remnants. If so, the Universe might be filled with remnants of tiny primordial black holes, which formed with mass M < 10 9 g. A unique scenario is the case of M ∼ 5 × 10 5 g, where tiny primordial black holes reheat the Universe by Hawking evaporation and their remnants dominate the dark matter (DM). Here, we point out that this scenario leads to a cosmological gravitational wave signal at frequencies ∼100 Hz. Finding such a particular gravitational wave signature with, e.g. the Einstein telescope, would suggest black hole remnants as DM.
KW - black hole remnants
KW - dark matter
KW - gravitational waves
KW - primordial black holes
UR - http://www.scopus.com/inward/record.url?scp=85166257107&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2303.07661
DO - 10.48550/arXiv.2303.07661
M3 - Article
AN - SCOPUS:85166257107
VL - 40
JO - Classical and quantum gravity
JF - Classical and quantum gravity
SN - 0264-9381
IS - 17
M1 - 177001
ER -