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Localization of Gamma-Ray Bursts using the Fermi Gamma-Ray Burst Monitor
V. Connaughton, M. S. Briggs, A. Goldstein +25
The Fermi Gamma-ray Burst Monitor (GBM) has detected over 1400 Gamma-Ray Bursts (GRBs) since it began science operations in July, 2008. We use a subset of over 300 GRBs localized b…
Synchrotron Cooling in Energetic Gamma-Ray Bursts Observed by the Fermi Gamma-Ray Burst Monitor
Hoi-Fung Yu, Jochen Greiner, Hendrik van Eerten +15
We study the time-resolved spectra of eight GRBs observed by Fermi GBM in its first five years of mission, with 1 keV - 1 MeV fluence erg cm and signal-…
GROND coverage of the main peak of Gamma-Ray Burst 130925A
J. Greiner, H. -F. Yu, T. Krühler +23
Prompt or early optical emission in gamma-ray bursts is notoriously difficult to measure, and observations of the dozen cases show a large variety of properties. Yet, such early em…
Quasi-Periodic Oscillations in Short Recurring Bursts of the Soft-Gamma Repeater J1550-5418
Daniela Huppenkothen, Caroline D'Angelo, Anna L. Watts +11
The discovery of quasi-periodic oscillations (QPOs) in magnetar giant flares has opened up prospects for neutron star asteroseismology. The scarcity of giant flares makes a search…
Time resolved spectroscopy of SGR J1550-5418 bursts detected with Fermi/GBM
G. Younes, C. Kouveliotou, A. J. van der Horst +18
We report on time-resolved spectroscopy of the 63 brightest bursts of SGR J1550-5418, detected with Fermi/Gamma-ray Burst Monitor during its 2008-2009 intense bursting episode. We…
A Missing-Link in the Supernova-GRB Connection: The Case of SN 2012ap
Sayan Chakraborti, Alicia Soderberg, Laura Chomiuk +50
Gamma Ray Bursts (GRBs) are characterized by ultra-relativistic outflows, while supernovae are generally characterized by non-relativistic ejecta. GRB afterglows decelerate rapidly…