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Broadband Spectral Properties of Bright High-Energy Gamma-Ray Bursts Observed with BATSE and EGRET
Y. Kaneko, M. M. Gonzalez, R. Preece +2
We present the spectral analysis of duration-integrated broadband spectra (in keVMeV) of 15 bright BATSE gamma-ray bursts (GRBs). Some GRB spectra are very hard, wi…
Observations of the intense and ultra-long burst GRB041219a with the Germanium Spectrometer on INTEGRAL
S. McBreen, L. Hanlon, S. McGlynn +5
GRB041219a is the brightest burst localised by INTEGRAL. The intense burst occurred about ~250s after the precursor and the long delay enabled optical and near infrared telescopes…
INTEGRAL and XMM-Newton observations of the low-luminosity and X-ray rich burst GRB 040223
S. McGlynn, S. McBreen, L. Hanlon +6
GRB 040223 was observed by INTEGRAL and XMM-Newton. GRB 040223 has a peak flux of (1.6+/-0.13) x10^-8 ergs cm^-2 s^-1, a fluence of (4.4+/-0.4)x10^-7 ergs cm^-2 and a steep photon…
Weibel Instability Driven by Relativistic Pair Jets: Particle Acceleration, Magnetic Field Generation, and Emission
K. -I. Nishikawa, P. Hardee, C. B. Hededal +4
Shock acceleration is a ubiquitous phenomenon in astrophysical plasmas. Plasma waves and their associated instabilities (e.g., Buneman, Weibel and other two-stream instabilities) c…
INTEGRAL and XMM-Newton Observations of GRB040106
L. Moran, S. Mereghetti, D. Gotz +10
On January 6th 2004, the IBAS burst alert system triggered the 8th gamma-ray burst (GRB) to be located by the INTEGRAL satellite. The position was determined and publicly distribut…
Particle Acceleration, Magnetic Field Generation, and Emission in Relativistic Shocks
K. -I. Nishikawa, P. Hardee, C. B. Hededal +4
Shock acceleration is an ubiquitous phenomenon in astrophysical plasmas. Plasma waves and their associated instabilities (e.g., Buneman, Weibel and other two-stream instabilities)…