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arXiv · 1102.1728

Peccei-Quinn axions from frequency dependence radiation dimming

Raul Jimenez·Carlos Pena-Garay·Licia Verde
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Abstract

We explore how the Peccei-Quinn (PQ) axion parameter space can be constrained by the frequency-dependence dimming of radiation from astrophysical objects. To do so we perform accurate calculations of photon-axion conversion in the presence of a variable magnetic field. We propose several tests where the PQ axion parameter space can be explored with current and future astronomical surveys: the observed spectra of isolated neutron stars, occultations of background objects by white dwarfs and neutron stars, the light curves of eclipsing binaries containing a white dwarf. We find that the lack of dimming of the light curve of a detached eclipsing white dwarf binary recently observed, leads to relevant constraints on the photon-axion conversion. Current surveys designed for Earth-like planet searches are well matched to strengthen and improve the constraints on the PQ axion using astrophysical objects radiation dimming.

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Raul Jimenez, Carlos Pena-Garay, Licia Verde. 2011-02-08. Peccei-Quinn axions from frequency dependence radiation dimming. https://doi.org/10.1016/j.physletb.2011.08.019

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