Photon-Axion-Like Particle Coupling Constant and Cosmological Observations

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dc.creatorPiotrovich, M. Yu.
dc.creatorGnedin, Yu. N.
dc.creatorNatsvlishvili, T. M.
dc.date2008-05-23
dc.date.accessioned2026-07-07T09:40:40Z
dc.date.available2026-07-07T09:40:40Z
dc.descriptionWe estimated the photon-pseudoscalar particle mixing constant from the effect of cosmological alignment and cosmological rotation of polarization plane of distant QSOs. This effect is explained in terms of birefringent phenomenon due to photon-pseudoscalar (axion-like) particle mixing in a cosmic magnetic field. On the contrary, one can estimate the strength of the cosmic magnetic field using the constraints on the photon-axion-like particle coupling constant from the CAST experiment and from SNe Ia dimming effect. In a result, the lower limit on the intergalactic ($z\approx 1÷2$) magnetic field appears at the level of about $4\times 10^{-10}÷10^{-11}$ G.
dc.description8 pages
dc.identifierhttps://arxiv.org/abs/0805.3649
dc.identifierhttp://arxiv.org/abs/0805.3649
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/161557
dc.subjectAstrophysics
dc.titlePhoton-Axion-Like Particle Coupling Constant and Cosmological Observations
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