Old neutron stars as a new probe of relic neutrinos and sterile neutrino dark matter
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866916663294689280 |
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| author | Das, Saurav Dev, P. S. Bhupal Okawa, Takuya Soni, Amarjit |
| author_facet | Das, Saurav Dev, P. S. Bhupal Okawa, Takuya Soni, Amarjit |
| contents | We study the kinetic cooling (heating) of old neutron stars due to coherent scattering with relic neutrinos (sterile neutrino dark matter) via Standard Model neutral-current interactions. We take into account several important physical effects, such as gravitational clustering, coherent enhancement, neutron degeneracy and Pauli blocking. We find that the anomalous cooling of nearby neutron stars due to relic neutrino scattering might actually be observable by current and future telescopes operating in the optical to near-infrared frequency band, such as the James Webb Space Telescope (JWST), provided there is a large local relic overdensity that is still allowed. Similarly, the anomalous heating of neutron stars due to coherent scattering with keV-scale sterile neutrino dark matter, could also be observed by JWST or future telescopes, which would probe hitherto unexplored parameter space in the sterile neutrino mass-mixing plane. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2408_01484 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Old neutron stars as a new probe of relic neutrinos and sterile neutrino dark matter Das, Saurav Dev, P. S. Bhupal Okawa, Takuya Soni, Amarjit High Energy Physics - Phenomenology High Energy Astrophysical Phenomena Solar and Stellar Astrophysics Nuclear Theory We study the kinetic cooling (heating) of old neutron stars due to coherent scattering with relic neutrinos (sterile neutrino dark matter) via Standard Model neutral-current interactions. We take into account several important physical effects, such as gravitational clustering, coherent enhancement, neutron degeneracy and Pauli blocking. We find that the anomalous cooling of nearby neutron stars due to relic neutrino scattering might actually be observable by current and future telescopes operating in the optical to near-infrared frequency band, such as the James Webb Space Telescope (JWST), provided there is a large local relic overdensity that is still allowed. Similarly, the anomalous heating of neutron stars due to coherent scattering with keV-scale sterile neutrino dark matter, could also be observed by JWST or future telescopes, which would probe hitherto unexplored parameter space in the sterile neutrino mass-mixing plane. |
| title | Old neutron stars as a new probe of relic neutrinos and sterile neutrino dark matter |
| topic | High Energy Physics - Phenomenology High Energy Astrophysical Phenomena Solar and Stellar Astrophysics Nuclear Theory |
| url | https://arxiv.org/abs/2408.01484 |