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Large-scale coherent orientations of quasar polarisation vectors: interpretation in terms of axion-like particles
Payez, Alexandre; Hutsemekers, Damien; Cudell, Jean-René
2010In AIP Conference Proceedings, 1274,
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Keywords :
axion; quasar; polarisation
Abstract :
[en] The observation of redshift-dependent coherent orientations of quasar polarisation vectors over cosmological distances in some regions of the sky is reviewed. Based on a good-quality sample of 355 measured quasars, this observation seems to infer the existence of a new effect acting on light propagation on such huge distances. A solution in terms of nearly massless axion-like particles has been proposed in the literature and its current status is discussed.
Disciplines :
Space science, astronomy & astrophysics
Physics
Author, co-author :
Payez, Alexandre ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Interactions fondamentales en physique et astrophysique
Hutsemekers, Damien ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Cudell, Jean-René  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Interactions fondamentales en physique et astrophysique
Language :
English
Title :
Large-scale coherent orientations of quasar polarisation vectors: interpretation in terms of axion-like particles
Publication date :
2010
Event name :
Axions 2010
Event organizer :
Guenakh Mitselmakher, Pierre Ramond, Neil Sullivan, David Tanner, Karl van Bibber
Event place :
Gainesville, United States - Florida
Event date :
15th - 17th January 2010
By request :
Yes
Audience :
International
Journal title :
AIP Conference Proceedings
ISSN :
0094-243X
eISSN :
1551-7616
Publisher :
American Institute of Physics
Volume :
1274,
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 16 December 2010

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