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On the Implications of Late Internal Dissipation for Shallow-Decay Afterglow Emission and Associated High-Energy Gamma-Ray Signals
Kohta Murase, Kenji Toma, Ryo Yamazaki +1
The origin of the shallow-decay emission during early X-ray afterglows has been an open issue since the launch of the Swift satellite. One of the appealing models is the late inter…
Prompt X-ray and Optical Excess Emission due to Hadronic Cascades in Gamma-Ray Bursts
Katsuaki Asano, Susumu Inoue, Peter Meszaros
A fraction of gamma-ray bursts exhibit distinct spectral features in their prompt emission below few 10s of keV that exceed simple extrapolations of the low-energy power-law portio…
A Photosphere-Internal Shock Model of Gamma-Ray Bursts: Case Studies of Fermi/LAT Bursts
Kenji Toma, Xue-Feng Wu, Peter Meszaros
Radially inhomogeneous gamma-ray burst (GRB) jets release variable photospheric emission and can have internal shocks occurring above the photosphere. We generically formulate a ph…
The spectrum of Cosmic Rays escaping from relativistic shocks
Boaz Katz, Peter Meszaros, Eli Waxman
We derive expressions for the time integrated spectrum of Cosmic Rays (CRs) that are accelerated in a decelerating relativistic shock wave and escape ahead of the shock. It is assu…