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Cornering the axionlike particle explanation of quasar polarizations
Payez, Alexandre
2012In Physical Review. D, Particles, Fields, Gravitation, and Cosmology, 85 (8), p. 087701
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Keywords :
axion-like particle; polarization; quasar; alignments; radio; visible
Abstract :
[en] In a series of papers, it has been shown that the distribution of polarization position angles for visible light from quasars is not random in extremely large regions of the sky. As explained in a recent article, the measurement of vanishing circular polarization for such quasars is an important problem for a mechanism involving the mixing with axionlike particles in external magnetic fields. In this paper, we stress that a recent report of similar coherent orientations of polarization in radio waves further disfavors the need for such particles, as an effect at these wavelengths would be extremely suppressed or would directly contradict data.
Disciplines :
Physics
Space science, astronomy & astrophysics
Author, co-author :
Payez, Alexandre ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Physique des astroparticules
Language :
English
Title :
Cornering the axionlike particle explanation of quasar polarizations
Publication date :
25 April 2012
Journal title :
Physical Review. D, Particles, Fields, Gravitation, and Cosmology
ISSN :
1550-7998
eISSN :
1550-2368
Publisher :
American Physical Society, College Park, United States - Maryland
Volume :
85
Issue :
8
Pages :
087701
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 24 September 2012

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