Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing
Superradiance provides a unique opportunity for investigating dark sectors as well as primordial black holes, which themselves are candidates for dark matter over a wide mass range. Using axion-like particles as an example, we show that line signals emerging from a superradiated axion cloud combined...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269325000140 |
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| author | James B. Dent Bhaskar Dutta Tao Xu |
| author_facet | James B. Dent Bhaskar Dutta Tao Xu |
| author_sort | James B. Dent |
| collection | DOAJ |
| description | Superradiance provides a unique opportunity for investigating dark sectors as well as primordial black holes, which themselves are candidates for dark matter over a wide mass range. Using axion-like particles as an example, we show that line signals emerging from a superradiated axion cloud combined with black hole Hawking radiation in extragalactic and galactic halos, along with microlensing observations lead to complementary constraints on parameter space combinations including the axion-photon coupling, axion mass, black hole mass, and its dark matter fraction, fPBH. For the asteroid mass range ∼1016−1022g, where primordial black holes can provide the totality of dark matter, we demonstrate that ongoing and upcoming observations such as SXI, JWST, and AMEGO-X will be sensitive to possible line and continuum signals, respectively, providing probes of previously inaccessible regions of fPBH parameter space. Further complementarity from a stochastic gravitational-wave background emerging from the black hole formation mechanism is also considered. |
| format | Article |
| id | doaj-art-f4712c7c7ca14c0e8dbc84b666ce1ee8 |
| institution | Kabale University |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-f4712c7c7ca14c0e8dbc84b666ce1ee82025-02-10T04:33:54ZengElsevierPhysics Letters B0370-26932025-02-01861139254Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensingJames B. Dent0Bhaskar Dutta1Tao Xu2Department of Physics, Sam Houston State University, Huntsville, TX 77341, USAMitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USAHomer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019, USA; Corresponding author.Superradiance provides a unique opportunity for investigating dark sectors as well as primordial black holes, which themselves are candidates for dark matter over a wide mass range. Using axion-like particles as an example, we show that line signals emerging from a superradiated axion cloud combined with black hole Hawking radiation in extragalactic and galactic halos, along with microlensing observations lead to complementary constraints on parameter space combinations including the axion-photon coupling, axion mass, black hole mass, and its dark matter fraction, fPBH. For the asteroid mass range ∼1016−1022g, where primordial black holes can provide the totality of dark matter, we demonstrate that ongoing and upcoming observations such as SXI, JWST, and AMEGO-X will be sensitive to possible line and continuum signals, respectively, providing probes of previously inaccessible regions of fPBH parameter space. Further complementarity from a stochastic gravitational-wave background emerging from the black hole formation mechanism is also considered.http://www.sciencedirect.com/science/article/pii/S0370269325000140 |
| spellingShingle | James B. Dent Bhaskar Dutta Tao Xu Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing Physics Letters B |
| title | Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing |
| title_full | Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing |
| title_fullStr | Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing |
| title_full_unstemmed | Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing |
| title_short | Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing |
| title_sort | multi messenger probes of asteroid mass primordial black holes superradiance spectroscopy hawking radiation and microlensing |
| url | http://www.sciencedirect.com/science/article/pii/S0370269325000140 |
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