Gamma rays from SN 1987A due to pseudoscalar conversion
Grifols, J. A. (Josep Antoni) (Josep Antoni) (Institut de Física d'Altes Energies)
Massó i Soler, Eduard, 1954- (Universitat Autònoma de Barcelona. Departament de Física)
Toldrà Sabaté, Ramon (Institut de Física d'Altes Energies)
American Physical Society

Date:	1996
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<3×10−12GeV−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.
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; Versió publicada
Published in:	Physical review letters, Vol. 77, Issue 12 (September 1996) , p. 2372-2375, ISSN 1079-7114

DOI: 10.1103/PhysRevLett.77.2372

4 p, 124.9 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Institut de Física d’Altes Energies (IFAE)
Articles > Published articles