13-18 December 2015
International Conference Centre Geneva
Europe/Zurich timezone

Probing the Extragalactic Background Light with VERITAS

15 Dec 2015, 14:00
Level 0, Room 4 (International Conference Centre Geneva)

Level 0, Room 4

International Conference Centre Geneva

17 Rue de Varembé, 1211 Geneva


Elisa Kay Pueschel (University College Dublin)


The observed spectra of active galactic nuclei carry the imprint of gamma-ray interactions with the extragalactic background light (EBL). As gamma rays from an extragalactic source travel to the observer, pair production on the EBL plays a role in reprocessing the photons to lower energies, obscuring the intrinsic source spectrum. VERITAS, a ground-based imaging atmospheric-Cherenkov telescope array sensitive to gamma rays above 85 GeV, has collected a large set of observations of blazars for a range of redshifts. We present the latest VERITAS results from using blazar spectral measurements to constrain the EBL’s spectral energy distribution.
Collaboration VERITAS

Primary author

Elisa Kay Pueschel (University College Dublin)

Presentation Materials