Shining light through the Sun

dc.creatorFairbairn, Malcolm
dc.creatorRashba, Timur
dc.creatorTroitsky, Sergey
dc.date2006-10-30
dc.date2007-05-19
dc.date.accessioned2026-07-07T11:42:39Z
dc.date.available2026-07-07T11:42:39Z
dc.descriptionIt is shown that the Sun can become partially transparent to high energy photons in the presence of a pseudo-scalar. In particular, if the axion interpretation of the PVLAS result were true then up to 2% of GeV energy gamma rays might pass through the Sun, while an even stronger effect is expected for some axion parameters. We discuss the possibilities of observing this effect. Present data are limited to the observation of the solar occultation of 3C 279 by EGRET in 1991; 98% C.L. detection of a non-zero flux of gamma rays passing through the Sun is not yet conclusive. Since the same occultation happens every October, future experiments, e.g. GLAST, are expected to have better sensitivity.
dc.descriptionMinor changes. Published in PRL under title "Transparency of the Sun to gamma rays due to axionlike particles"
dc.identifierhttps://arxiv.org/abs/astro-ph/0610844
dc.identifierhttp://arxiv.org/abs/astro-ph/0610844
dc.identifierPhys.Rev.Lett.98:201801,2007
dc.identifierdoi:10.1103/PhysRevLett.98.201801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200957
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleShining light through the Sun
dc.typetext

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