Reference : New polarimetric constraints on axion-like particles
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/129194
New polarimetric constraints on axion-like particles
English
Payez, Alexandre mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Physique des astroparticules >]
Cudell, Jean-René mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Physique des astroparticules >]
Hutsemekers, Damien mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
20-Jul-2012
Journal of Cosmology and Astroparticle Physics [= JCAP]
Institute of Physics Publishing (IOP)
1207
041
Yes (verified by ORBi)
International
1475-7516
Bristol
England
[en] quasars ; axion-like particles ; polarization
[en] We show that the parameter space of axion-like particles can be severly constrained using high-precision measurements of quasar polarisations. Robust limits are derived from the measured bounds on optical circular polarisation and from the distribution of linear polarisations of quasars. As an outlook, this technique can be improved by the observation of objects located behind clusters of galaxies, using upcoming space-borne X-ray polarimeters.
Researchers
http://hdl.handle.net/2268/129194
10.1088/1475-7516/2012/07/041
http://arxiv.org/abs/arXiv:1204.6187

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