First Constraints on the Photon Coupling of Axion-like Particles from Multimessenger Studies of the Neutron Star Merger GW170817
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866915629958692864 |
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| author | Dev, P. S. Bhupal Fortin, Jean-François Harris, Steven P. Sinha, Kuver Zhang, Yongchao |
| author_facet | Dev, P. S. Bhupal Fortin, Jean-François Harris, Steven P. Sinha, Kuver Zhang, Yongchao |
| contents | We use multimessenger observations of the neutron star merger event GW170817 to derive new constraints on axion-like particles (ALPs) coupling to photons. ALPs are produced via Primakoff and photon coalescence processes in the merger, escape the remnant and decay back into two photons, giving rise to a photon signal approximately along the line-of-sight to the merger. We analyze the spectral and temporal information of the ALP-induced photon signal, and use the Fermi-LAT observations of GW170817 to derive our new ALP constraints. We also show the improved prospects with future MeV gamma-ray missions, taking the spectral and temporal coverage of Fermi-LAT as an example. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_01002 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | First Constraints on the Photon Coupling of Axion-like Particles from Multimessenger Studies of the Neutron Star Merger GW170817 Dev, P. S. Bhupal Fortin, Jean-François Harris, Steven P. Sinha, Kuver Zhang, Yongchao High Energy Physics - Phenomenology High Energy Astrophysical Phenomena We use multimessenger observations of the neutron star merger event GW170817 to derive new constraints on axion-like particles (ALPs) coupling to photons. ALPs are produced via Primakoff and photon coalescence processes in the merger, escape the remnant and decay back into two photons, giving rise to a photon signal approximately along the line-of-sight to the merger. We analyze the spectral and temporal information of the ALP-induced photon signal, and use the Fermi-LAT observations of GW170817 to derive our new ALP constraints. We also show the improved prospects with future MeV gamma-ray missions, taking the spectral and temporal coverage of Fermi-LAT as an example. |
| title | First Constraints on the Photon Coupling of Axion-like Particles from Multimessenger Studies of the Neutron Star Merger GW170817 |
| topic | High Energy Physics - Phenomenology High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2305.01002 |