Título:
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Gamma rays from SN 1987A due to pseudoscalar conversion
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Autor/a:
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Grifols, Josep Antoni; Massó i Soler, Eduard, 1954-; Toldrà Sabaté, Ramon
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Otros autores:
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Universitat de Barcelona |
Abstract:
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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 $g$. |
Materia(s):
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-Astronomia -Astrofísica -Partícules (Física) -Fundamental astronomy and astrophysics -Properties of specific particles |
Derechos:
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(c) American Physical Society, 1996
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Tipo de documento:
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Artículo Artículo - Versión publicada |
Editor:
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American Physical Society
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