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https://hdl.handle.net/2445/13215
Title: | Gamma rays from SN 1987A due to pseudoscalar conversion |
Author: | Grifols, Josep Antoni Massó i Soler, Eduard, 1954- Toldrà Sabaté, Ramon |
Keywords: | Astronomia Astrofísica Partícules (Física) Fundamental astronomy and astrophysics Properties of specific particles |
Issue Date: | 1996 |
Publisher: | American Physical Society |
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 $\gamma-$rays by the galactic magnetic field. Measurements on the SN1987A $\gamma-$ray flux by the Gamma-Ray Spectrometer on the Solar Maximum Mission satellite already imply a bound on the coupling $g < 3 \times 10^{-12}$ 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 $g$. |
Note: | Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.77.2372 |
It is part of: | Physical Review Letters, 1996, vol. 77, núm. 12, p. 2372-2375 |
URI: | https://hdl.handle.net/2445/13215 |
Related resource: | http://dx.doi.org/10.1103/PhysRevLett.77.2372 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
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508060.pdf | 124.92 kB | Adobe PDF | View/Open |
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