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Gamma-Ray Burst Dynamics and Afterglow Radiation from Adaptive Mesh Refinement, Special Relativistic Hydrodynamic Simulations
Fabio De Colle, Jonathan Granot, Diego Lopez-Camara +1
We report on the development of Mezcal-SRHD, a new adaptive mesh refinement, special relativistic hydrodynamics (SRHD) code, developed with the aim of studying the highly relativis…
Simulations of GRB Jets in a Stratified External Medium: Dynamics, Afterglow Lightcurves, Jet Breaks and Radio Calorimetry
Fabio De Colle, Enrico Ramirez-Ruiz, Jonathan Granot +1
The dynamics of GRB jets during the afterglow phase is most reliably and accurately modelled using hydrodynamic simulations. All published simulations, however, have considered onl…
An Unexpected Discovery in the Rich Open Cluster NGC 6819 Using XMM-Newton
Natalie M. Gosnell, David Pooley, Aaron M. Geller +4
We present the first study of the X-ray population of the intermediate-age rich open cluster NGC 6819 using the XMM-Newton Observatory. In the past decade, Chandra X-ray observatio…
Fermi/GBM Observations of SGR J0501+4516 Bursts
Lin Lin, Chryssa Kouveliotou, Matthew G. Baring +27
We present our temporal and spectral analyses of 29 bursts from SGR J0501+4516, detected with the Gamma-ray Burst Monitor onboard the Fermi Gamma-ray Space Telescope during the 13…
Electromagnetic Transients Powered by Nuclear Decay in the Tidal Tails of Coalescing Compact Binaries
Luke F. Roberts, Dan Kasen, William H. Lee +1
The possibility that long tidal tails formed during compact object mergers may power optical transients through the decay of freshly synthesized r-process material is investigated.…
A relativistic jetted outburst from a massive black hole fed by a tidally disrupted star
Joshua S. Bloom, Dimitrios Giannios, Brian D. Metzger +19
While gas accretion onto some massive black holes (MBHs) at the centers of galaxies actively powers luminous emission, the vast majority of MBHs are considered dormant. Occasionall…