| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2025-11-27 |
| タイトル |
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タイトル |
Induced gravitational waves probing primordial black hole dark matter with the memory burden effect |
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言語 |
en |
| 著者 |
Kohri, Kazunori
Terada, Takahiro
Yanagida, Tsutomu T.
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利 |
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権利情報 |
© 2025 American Physical Society |
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言語 |
en |
| 内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
Quantum evaporation of a black hole is conventionally studied semiclassically by assuming self-similarity of the black hole throughout the evaporation process. However, its validity was recently questioned, and the lifetime of a black hole is conjectured to be much extended by the memory burden effect. It gives rise to the possibility that the primordial black holes (PBHs) lighter than 10^10 grams are the dark matter in the Universe. To probe such PBH dark matter, we study gravitational waves (GWs) induced by primordial curvature perturbations that produced the PBHs. We find ΩGW(𝑓peak)ℎ2 =7 ×10^−9 with the peak frequency 𝑓peak =1 ×10^3(𝑀PBH/(10^10g))^−1/2 Hz, and the induced GWs associated with the PBH dark matter whose initial mass is greater than about 10^7 grams can be tested by future observations such as Cosmic Explorer. Furthermore, the scenario can be in principle confirmed by detecting another GW signal from the mergers of PBHs, which leads to high-frequency GWs with 𝑓peak =2 ×10^27(𝑀PBH,ini/(10^10g))^−1 Hz. On the other hand, the induced GW signals stronger than expected would contradict the dark matter abundance and exclude the memory burden effect. |
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言語 |
en |
| 出版者 |
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出版者 |
American Physical Society |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1103/PhysRevD.111.063543 |
| 収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
2470-0010 |
| 書誌情報 |
ja : PHYSICAL REVIEW D
巻 111,
号 6,
p. 063543,
発行日 2025-03-21
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PhysRevD_111_063543.pdf (709 KB)
