Gamma Rays from SN 1987A due to Pseudoscalar Conversion

J. A. Grifols; E. Massó; R. Toldrà

doi:https://doi.org/10.1103/PhysRevLett.77.2372

Gamma Rays from SN 1987A due to Pseudoscalar Conversion

J. A. Grifols, E. Massó, R. Toldrà

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

103 Citations (Scopus)

Abstract

A light pseudoscalar coupled to two photons would be copiously emitted by the core of a supernova. Part of this flux would be converted to γ rays by the galactic magnetic field. Measurements on the SN 1987A γ-ray flux by the Gamma-Ray Spectrometer on the Solar Maximum Mission satellite already imply a bound on the coupling g<3×10-12 GeV-1. The improved generation of satellite-borne detectors, like EGRET or the project GLAST, could be able to detect a pseudoscalar-to-photon signal from a nearby supernova, for allowed values of g. © 1996 The American Physical Society.

Original language	English
Pages (from-to)	2372-2375
Journal	Physical Review Letters
Volume	77
DOIs	https://doi.org/10.1103/PhysRevLett.77.2372
Publication status	Published - 1 Jan 1996

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abstract = "A light pseudoscalar coupled to two photons would be copiously emitted by the core of a supernova. Part of this flux would be converted to γ rays by the galactic magnetic field. Measurements on the SN 1987A γ-ray flux by the Gamma-Ray Spectrometer on the Solar Maximum Mission satellite already imply a bound on the coupling g<3×10-12 GeV-1. The improved generation of satellite-borne detectors, like EGRET or the project GLAST, could be able to detect a pseudoscalar-to-photon signal from a nearby supernova, for allowed values of g. {\textcopyright} 1996 The American Physical Society.",

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