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Detection of a Thermal Spectral Component in the Prompt Emission of GRB 100724B
Sylvain Guiriec, Valerie Connaughton, Michael S. Briggs +29
Observations of GRB 100724B with the Fermi Gamma-Ray Burst Monitor (GBM) find that the spectrum is dominated by the typical Band functional form, which is usually taken to represen…
A New Discriminator for Gamma-Ray Burst Classification: The Epeak-Fluence Energy Ratio
A. Goldstein, R. D. Preece, M. S. Briggs
Using the derived gamma-ray burst E_peak and fluences from the complete BATSE 5B Spectral Catalog, we study the ensemble characteristics of the E_peak-fluence relation for GRBs. Th…
Time-Resolved Spectroscopy of the 3 Brightest and Hardest Short Gamma-Ray Bursts Observed with the FGST Gamma-Ray Burst Monitor
Sylvain Guiriec, Michael S. Briggs, Valerie Connaugthon +25
From July 2008 to October 2009, the Gamma-ray Burst Monitor (GBM) on board the Fermi Gamma-ray Space Telescope (FGST) has detected 320 Gamma-Ray Bursts (GRBs). About 20% of these e…
The Connection Between Thermal and Non-Thermal Emission in Gamma-ray Bursts: General Considerations and GRB090902B as a Case Study
Asaf Pe'er, Bin-Bin Zhang, Felix Ryde +4
Photospheric (thermal) emission is inherent to the gamma-ray burst (GRB) "fireball" model. We show here, that inclusion of this component in the analysis of the GRB prompt emission…
The ZEPLIN-III Anti-Coincidence Veto Detector
D. Yu. Akimov, H. M. Araujo, E. J. Barnes +34
The design, optimisation and construction of an anti-coincidence veto detector to complement the ZEPLIN-III direct dark matter search instrument is described. One tonne of plastic…
Limits on inelastic dark matter from ZEPLIN-III
D. Yu. Akimov, H. M. Araujo, E. J. Barnes +43
We present limits on the WIMP-nucleon cross section for inelastic dark matter derived from the 2008 run of ZEPLIN-III. Cuts, notably on scintillation pulse shape and scintillation-…
Fermi detection of delayed GeV emission from the short GRB 081024B
Fermi LAT Collaboration, Fermi GBM Collaboration
We report on the detailed analysis of the high-energy extended emission from the short Gamma-Ray Burst (GRB) 081024B, detected by the Fermi Gamma-ray Space Telescope. Historically,…