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16 papers · 2 filters
The Luminous Infrared Host Galaxy of Short-Duration GRB 100206A
Daniel A. Perley, M. Modjaz, A. N. Morgan +5
The known host galaxies of short-hard gamma-ray bursts (GRBs) to date are characterized by low to moderate star-formation rates and a broad range of stellar masses. In this paper,…
Search for signatures of magnetically-induced alignment in the arrival directions measured by the Pierre Auger Observatory
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +496
We present the results of an analysis of data recorded at the Pierre Auger Observatory in which we search for groups of directionally-aligned events (or `multiplets') which exhibit…
Gamma-ray burst afterglow scaling relations for the full blast wave evolution
H. J. van Eerten, A. I. MacFadyen
We demonstrate that gamma-ray burst afterglow spectra and light curves can be calculated for arbitrary explosion and radiation parameters by scaling the peak flux and the critical…
Observation and Spectral Measurements of the Crab Nebula with Milagro
A. A. Abdo, B. T. Allen, T. Aune +32
The Crab Nebula was detected with the Milagro experiment at a statistical significance of 17 standard deviations over the lifetime of the experiment. The experiment was sensitive t…
Gamma-ray burst afterglow broadband fitting based directly on hydrodynamics simulations
H. J. van Eerten, A. J. van der Horst, A. I. MacFadyen
We present a powerful new tool for fitting broadband gamma-ray burst afterglow data, which can be used to determine the burst explosion parameters and the synchrotron radiation par…
Numerical Simulations of Driven Supersonic Relativistic MHD Turbulence
Jonathan Zrake, Andrew MacFadyen
Models for GRB outflows invoke turbulence in relativistically hot magnetized fluids. In order to investigate these conditions we have performed high-resolution three-dimensional nu…