Extended GeV-TeV Emission around Gamma-Ray Burst Remnants, and the Case of W49B

Abstract

We investigate the high-energy photon emission around Gamma-Ray Burst (GRB) remnants caused by ultrahigh-energy cosmic rays (UHECRs) from the GRBs. We apply the results to the recent report that the supernova remnant W49B is a GRB remnant in our Galaxy. If this is correct, and if GRBs are sources of UHECRs, a natural consequence of this identification would be a detectable TeV photon emission around the GRB remnant. The imaging of the surrounding emission could provide new constraints on the jet structure of the GRB.

12 pages, 2 figures, accepted for publication in ApJL

References in corpus (1)

• GLAST: Understanding the High Energy Gamma-Ray Sky

Cited by in corpus (11)

• Gamma-Ray Bursts
• Gamma-Ray Bursts in the Swift Era
• High energy gamma-ray emission from Gamma-Ray Bursts -- before GLAST
• TeV-PeV Neutrinos from Giant Flares of Magnetars and the Case of SGR 1806-20
• Cosmic Rays from Gamma Ray Bursts in the Galaxy
• GRBs and the 511 keV emission of the Galactic bulge
• Rapid X-ray Declines and Plateaus in Swift GRB Light Curves Explained by A Highly Radiative Blast Wave
• A gamma-ray burst remnant in our Galaxy: HESS J1303-631
• Hypernova and Gamma-Ray Burst Remnants as TeV Unidentified Sources
• Finding short GRB remnants in globular clusters: the VHE gamma-ray source in Terzan 5
• Suzaku Discovery of Twin Thermal Plasma from the Tornado Nebula