513 citations · 2.4k across the 13 of their papers we have counts for
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GRB Energetics in the Swift Era
Daniel Kocevski, Nathaniel Butler
We examine the rest frame energetics of 76 gamma-ray bursts (GRBs) with known redshift that were detected by the Swift spacecraft and monitored by the satellite's X-ray Telescope (…
A Complete Catalog of Swift GRB Spectra and Durations: Demise of a Physical Origin for Pre-Swift High-Energy Correlations
Nathaniel R. Butler, Daniel Kocevski, Joshua S. Bloom +1
We calculate durations and spectral paramaters for 218 Swift bursts detected by the BAT instrument between and including GRBs 041220 and 070509, including 77 events with measured r…
X-ray Hardness Variations as an Internal/External Shock Diagnostic
Nathaniel R. Butler, Daniel Kocevski
The early, highly time-variable X-ray emission immediately following GRBs exhibits strong spectral variations that are unlike the temporally smoother emission which dominates after…
Pulse Width Evolution of Late Time X-rays Flares in GRBs: Evidence For Internal Shocks
Daniel Kocevski, Nathaniel Butler, Joshua S. Bloom
We study the duration and variability of late time X-ray flares following gamma-ray bursts (GRBs) observed by the narrow field X-ray telescope (XRT) aboard the {\it Swift} spacecra…