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An upper limit of the number and energy of electrons accelerated at an extended coronal shock wave
Klein, K. -L.; Lecacheux, A.; McTiernan, J. M. +3 more
Type II radio emission is the most direct signature of extended shock waves in the solar corona, and a prime example of electron acceleration at a shock. Yet, the energetics of these electrons is poorly known. On 1996 August 19 and 1997 October 07 type II bursts were observed in association with flares behind the solar limb. While Earth-orbiting X…
Time resolved spectroscopy of GRB 030501 using INTEGRAL
Götz, D.; Mereghetti, S.; von Kienlin, A. +8 more
The gamma-ray instruments on-board INTEGRAL offer an unique opportunity to perform time resolved analysis on GRBs. The imager IBIS allows accurate positioning of GRBs and broad band spectral analysis, while SPI provides high resolution spectroscopy. GRB 030501 was discovered by the INTEGRAL Burst Alert System in the ISGRI field of view. Although t…
Stereoscopic observations of the giant hard X-ray/gamma-ray solar flare on 1991 June 30 at 0255 UT
Hurley, K.; Kane, S. R.; Vilmer, N. +3 more
The hard X-ray/gamma-ray (HXR/GR) impulsive burst on 1991 June 30 ( ~ 0255 UT) was associated with a flare which occured between 2degr and 12degr behind the east limb of the Sun. The partially occulted HXR/GR emission from this flare was detected at up to 100 MeV by three instruments on Earth-orbiting spacecraft: the Burst and Transient Source Exp…