Inspecting absorption in the spectra of extra-galactic gamma-ray sources for insight into Lorentz invariance violation

Uri Jacob and Tsvi Piran
Phys. Rev. D 78, 124010 – Published 12 December 2008

Abstract

We examine what the absorbed spectra of extra-galactic TeV gamma-ray sources, such as blazars, would look like in the presence of Lorentz invariance violation. Pair production with the extra-galactic background light modifies the observed spectra of such sources, and we show that a violation of Lorentz invariance would generically have a dramatic effect on this absorption feature. Inspecting this effect, an experimental task likely practical in the near future, can provide unique insight on the possibility of Lorentz invariance violation.

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  • Received 7 October 2008

DOI:https://doi.org/10.1103/PhysRevD.78.124010

©2008 American Physical Society

Authors & Affiliations

Uri Jacob* and Tsvi Piran

  • Racah Institute of Physics, The Hebrew University, Jerusalem, Israel

  • *uriyada@phys.huji.ac.il

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Vol. 78, Iss. 12 — 15 December 2008

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