VERITAS Observations of the Arrival Directions of the Highest Energy Cosmic Rays
J. Holder (for the VERITAS Collaboration)
TL;DR
This paper reports on VERITAS observations of regions linked to ultra-high energy cosmic rays, aiming to find gamma-ray counterparts and explore anisotropy in cosmic ray arrival directions.
Contribution
It presents the first VERITAS observations targeting regions associated with the highest energy cosmic rays, connecting gamma-ray data with cosmic ray anisotropy findings.
Findings
Initial observations of cosmic ray arrival regions by VERITAS
No significant gamma-ray emission detected yet
Supports ongoing multi-messenger astrophysics efforts
Abstract
The recent discovery by the Pierre Auger collaboration of anisotropy in the arrival directions of the highest energy cosmic rays, correlated with the positions of nearby active galactic nuclei, encourages the search for counterpart TeV gamma-ray emission. Approximately half of the sky viewed by the southern hemisphere Pierre Auger experiment is also visible at reasonable elevations for the northern hemisphere gamma-ray telescope array, VERITAS. We report on first observations by VERITAS of regions associated with the arrival directions of ultra-high energy cosmic ray events.
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