Observations of Supernova Remnants with VERITAS

TL;DR

This paper presents new VERITAS observations of supernova remnants, including spectral measurements of Cas A and IC 443, shedding light on their role in cosmic ray acceleration.

Contribution

It provides novel gamma-ray spectral data for specific supernova remnants and discusses their implications for understanding cosmic ray origins.

Findings

Spectral measurements of Cas A and IC 443 with VERITAS

Detection of the Forbidden Velocity Wing FVW 190.2+1.1

Insights into hadronic versus electronic cosmic ray acceleration

Abstract

The study of shell-type supernova remnants is a key science focus for the VERITAS TeV telescope array. Supernova remnants (SNRs) are widely considered to be the strongest candidate for the source of cosmic rays below the knee around 10^15 eV. This presentation will highlight new VERITAS results including new measurements of the spectra of Cas A and IC 443 and observations of the "Forbidden Velocity Wing" FVW 190.2+1.1. These results and their implications for the nature of the cosmic rays - hadronic or electronic - accelerated in the remnants will be discussed.