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34 papers · 2 filters
Fermi Detection of γ-ray emission from the M2 Soft X-ray Flare on 2010 June 12
Fermi GBM Collaboration, Fermi LAT Collaboration, B. R. Dennis +2
The GOES M2-class solar flare, SOL2010-06-12T00:57, was modest in many respects yet exhibited remarkable acceleration of energetic particles. The flare produced an ~50 s impulsive…
Orbital Decay and Evidence of Disk Formation in the X-ray Binary Pulsar OAO 1657-415
P. A. Jenke, M. H. Finger, C. A. Wilson-Hodge +1
OAO 1657-415 is an eclipsing X-ray binary wind-fed pulsar that has exhibited smooth spin-up/spin-down episodes and has undergone several torque reversals throughout its long histor…
Gamma-ray Activity in the Crab Nebula: The Exceptional Flare of April 2011
R. Buehler, J. D. Scargle, R. D. Blandford +18
The Large Area Telescope on board the Fermi satellite observed a gamma-ray flare in the Crab nebula lasting for approximately nine days in April of 2011. The source, which at optic…
Quasi-periodic flares in EXO 2030+375 observed with INTEGRAL
D. Klochkov, C. Ferrigno, A. Santangelo +5
Context: Episodic flaring activity is a common feature of X-ray pulsars in HMXBs. In some Be/X-ray binaries flares were observed in quiescence or prior to outbursts. EXO 2030+375 i…
Simulation of Relativistic Jets and Associated Self-consistent Radiation
K. -I. Nishikawa, E. J. Choi, K. Min +11
lasma instabilities excited in collisionless shocks are responsible for particle acceleration. We have investigated the particle acceleration and shock structure associated with an…
New Results from an old Friend: The Crab Nebula and its Pulsar
Martin C. Weisskopf
We summarize here the results, most of which are preliminary, of a number of recent observations of the Crab nebula system with the Chandra X-Ray Observatory. We discuss four diffe…