First Constraints on the Photon Coupling of Axionlike Particles from Multimessenger Studies of the Neutron Star Merger GW170817
We use multimessenger observations of the neutron star merger event GW170817 to derive new constraints on axionlike 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 Large Area Telescope (Fermi-LAT) observations of GW170817 to derive our new ALP constraints. We also show the improved prospects with future MeV γ-ray missions, taking the spectral and temporal coverage of Fermi-LAT as an example.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:132 |
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| Enthalten in: |
Physical review letters - 132(2024), 10 vom: 08. März, Seite 101003 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Fortin, Jean-François [VerfasserIn] |
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Date Revised 22.03.2024 published: Print Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1103/PhysRevLett.132.101003 |
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| PPN (Katalog-ID): |
NLM370079078 |
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a We use multimessenger observations of the neutron star merger event GW170817 to derive new constraints on axionlike 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 Large Area Telescope (Fermi-LAT) observations of GW170817 to derive our new ALP constraints. We also show the improved prospects with future MeV γ-ray missions, taking the spectral and temporal coverage of Fermi-LAT as an example | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Fortin, Jean-François |e verfasserin |4 aut | |
| 700 | 1 | |a Harris, Steven P |e verfasserin |4 aut | |
| 700 | 1 | |a Sinha, Kuver |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yongchao |e verfasserin |4 aut | |
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