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Ultra High Energy Cosmic Rays from Black Hole Jets of Radio Galaxies
C. D. Dermer, S. Razzaque, J. D. Finke +1
The Auger Collaboration reports that the arrival directions of >60 EeV ultra-high energy cosmic rays (UHECRs) cluster along the supergalactic plane and correlate with active galact…
Black-Hole Engine Kinematics, Flares from PKS 2155-304, and Multiwavelength Blazar Analysis
Charles D. Dermer, Justin D. Finke, Govind Menon
Kinematical and luminosity relations for black-hole jet sources are reviewed. If the TeV flares observed from PKS 2155-304 in 2006 July are assumed to originate from a black hole w…
Gamma-Ray Studies of Blazars: Synchro-Compton Analysis of Flat Spectrum Radio Quasars
Charles D. Dermer, Justin D. Finke, Hannah Krug +1
We extend a method for modeling synchrotron and synchrotron self-Compton radiations in blazar jets to include external Compton processes. The basic model assumption is that the bla…
The stellar contribution to the extra-galactic background light and absorption of high-energy gamma-rays
Soebur Razzaque, Charles D. Dermer, Justin D. Finke
TeV gamma rays from distant astrophysical sources are attenuated due to electron-positron pair creation by interacting with ultraviolet/optical to infrared photons which fill the u…
The Hard VHE Gamma-ray Emission in High-Redshift TeV Blazars: Comptonization of Cosmic Microwave Background Radiation in an Extended Jet?
Markus Boettcher, Charles D. Dermer, Justin D. Finke
Observations of very-high-energy (VHE, E > 250 GeV) gamma-ray emission from several blazars at z > 0.1 have placed stringent constraints on the elusive spectrum and intensity of th…
Nonthermal Synchrotron and Synchrotron Self-Compton Emission from GRBs: Predictions for {\em Swift} and {\em GLAST}
Justin Finke, Charles Dermer, Markus Boettcher
Results of a leptonic jet model for the prompt emission and early afterglows of GRBs are presented. The synchrotron component is modeled with the canonical Band spectrum and the sy…