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dc.contributor.authorAharonian, F.
dc.contributor.authorBüsching, I.
dc.contributor.authorDe Jager, O.C.
dc.contributor.authorHolleran, M.
dc.contributor.authorRaubenheimer, B.C.
dc.contributor.authorVenter, C.
dc.identifier.citationAharonian, F. et al. 2008. Limits on energy dependence of the speed of light from a flare of the active galaxy PKS 2155-304. Physcial review letters, 101(17): Article no 170402. []en
dc.identifier.issn1079-7114 (online)
dc.description.abstractIn the past few decades, several models have predicted an energy dependence of the speed of light in the context of quantum gravity. For cosmological sources such as active galaxies, this minuscule effect can add up to measurable photon-energy dependent time lags. In this Letter a search for such time lags during the High Energy Stereoscopic System observations of the exceptional very high energy flare of the active galaxy PKS 2155-304 on 28 July 2006 is presented. Since no significant time lag is found, lower limits on the energy scale of speed of light modifications are derived
dc.publisherAmerican Physical Society
dc.titleLimits on energy dependence of the speed of light from a flare of the active galaxy PKS 2155-304en
dc.contributor.researchID10859748 - Holleran, Mathew
dc.contributor.researchID12006653 - Venter, Christo
dc.contributor.researchID13235176 - Büsching, Ingo
dc.contributor.researchID10065857 - De Jager, Ocker Cornelis
dc.contributor.researchID10179240 - Raubenheimer, Barend Christoffel

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