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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 545021.0, MPI für Physik / MPI für Physik
Photon-axion conversion in intergalactic magnetic fields and cosmological consequences
Authors:Mirizzi, A.; Raffelt, G. G.; Serpico, P. D.
Date of Publication (YYYY-MM-DD):2008
Start Page:115
End Page:134
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Photon-axion conversion induced by intergalactic magnetic fields causes an apparent dimming of distant sources, notably of cosmic standard candles such as supernovae of type Ia (SNe Ia). We review the impact of this mechanism on the luminosity-redshift relation of SNe Ia, on the dispersion of quasar spectra, and on the spectrum of the cosmic microwave background. The original idea of explaining the apparent dimming of distant SNe Ia without cosmic acceleration is strongly constrained by these arguments. However, the cosmic equation of state extracted from the SN Ia luminosity-redshift relation remains sensitive to this mechanism. For example, it can mimic phantom energy.
Classification/Thesaurus:Astroparticle Physics
Comment of the Author/Creator:(14 pages, 9 eps figures) Contribution to appear in a volume of Lecture Notes in Physics (Springer-Verlag) on Axions
External Publication Status:published
Document Type:InBook
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2006-87
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/astro-ph/0607415
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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