Probing Axions with Radiation from Magnetic Stars

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dc.creatorLai, Dong
dc.creatorHeyl, Jeremy
dc.date2006-09-28
dc.date2006-11-15
dc.date.accessioned2026-07-07T10:40:17Z
dc.date.available2026-07-07T10:40:17Z
dc.descriptionRecent experiments suggest that polarized photons may couple significantly to pseudoscalar particles such as axions. We study the possible observational signatures of axion-photon coupling for radiation from magnetic stars, with particular focus on neutron stars. We present general methods for calculating the axion-photon conversion probability during propagation through a varying magnetized vacuum as well as across an inhomogeneous atmosphere. Partial axion-photon conversion may take place in the vacuum region outside the neutron star. Strong axion-photon mixing occurs due to a resonance in the atmosphere, and depending on the axion coupling strength and other parameters, significant axion-photon conversion can take place at the resonance. Such conversions may produce observable effects on the radiation spectra and polarization signals from the star. We also apply our results to axion-photon propagation in the Sun and in magnetic white dwarfs. We find that there is no appreciable conversion of solar axions to photons during the propagation.
dc.description12 pages, 11 figures. Minor changes. PRD accepted
dc.identifierhttps://arxiv.org/abs/astro-ph/0609775
dc.identifierhttp://arxiv.org/abs/astro-ph/0609775
dc.identifierPhys.Rev.D74:123003,2006
dc.identifierdoi:10.1103/PhysRevD.74.123003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181296
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleProbing Axions with Radiation from Magnetic Stars
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