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Gamma Ray Emission from Merger Shocks in the Coma Cluster of Galaxies
R. C. Berrington, C. D. Dermer
A numerical simulation model of the injection and cooling of nonthermal particles energized by shocks formed in merging clusters of galaxies is used to fit radio and X-ray data obs…
The Collapsar and Supranova Models
Charles D. Dermer
This rapporteur review summarizes results presented in Parallel Session GBT2 (Gamma Ray Burst Theory 2) on the Collapsar and Supranova Models held 25 July 2003 at the 10th Marcel G…
Nonthermal Radiation Processes in X-ray Jets
Charles D. Dermer, Armen Atoyan
Analytic approximations for synchrotron, synchrotron self-Compton (SSC), and external Compton (EC) processes are used to constrain model parameters for knot and hot-spot emission i…
Curvature Effects in Gamma Ray Burst Colliding Shells
Charles D. Dermer
An elementary kinematic model for emission produced by relativistic spherical colliding shells is studied. The case of a uniform blast-wave shell with jet opening angle $θ_j \gg 1/…
Frontiers in Cosmic Rays
Luis A. Anchordoqui, Charles D. Dermer, Andreas Ringwald
This rapporteur review covers selected results presented in the Parallel Session HEA2 (High Energy Astrophysics 2) of the 10th Marcel Grossmann Meeting on General Relativity, held…
Photoabsorption of Gamma Rays in Relativistic Jets
Charles Dermer
A derivation of the γγ--> e^+ e^- optical depth for γrays produced in a comoving spherical emitting region is presented. Employing a simplified expression for the γγabsorption cros…