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http://hdl.handle.net/2445/117587
Title: | Is it possible to explore Peccei-Quinn axions from frequency dependence radiation dimming? |
Author: | Jiménez, Raúl (Jiménez Tellado) Peña Garay, Carlos Verde, Licia |
Keywords: | Estels nans Partícules (Física nuclear) Cromodinàmica quàntica Dwarf stars Particles (Nuclear physics) Quantum chromodynamics |
Issue Date: | 2011 |
Publisher: | Elsevier B.V. |
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. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1016/j.physletb.2011.08.019 |
It is part of: | Physics Letters B, 2011, vol. 703, num. 3, p. 232-236 |
URI: | http://hdl.handle.net/2445/117587 |
Related resource: | https://doi.org/10.1016/j.physletb.2011.08.019 |
ISSN: | 0370-2693 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Publicacions de projectes de recerca finançats per la UE |
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