Gamma-ray observations of solar flares from August 2001 to November 2003: SONG experiment onboard CORONAS-F satellite results
نویسندگان
چکیده
منابع مشابه
Observations of X-ray Flares from Gamma Ray Bursts
Swift-XRT observations of the X-ray emission from gamma ray bursts (GRBs) and during the GRB afterglow have led to many new results during the past two years. One of these exciting results is that ∼1/3− 1/2 of GRBs contain detectable X-ray flares. The mean fluence of the X-ray flares is ∼10× less than that of the initial prompt emission, but in some cases the flare is as energetic as the prompt...
متن کاملAstrophysical explosions: from solar flares to cosmic gamma-ray bursts
Astrophysical explosions result from the release of magnetic, gravitational or thermonuclear energy on dynamical time scales, typically the sound-crossing time for the system. These explosions include solar and stellar flares, eruptive phenomena in accretion discs, thermonuclear combustion on the surfaces of white dwarfs and neutron stars, violent magnetic reconnection in neutron stars, thermon...
متن کاملAstrophysical explosions: from solar flares to cosmic gamma-ray bursts.
Astrophysical explosions result from the release of magnetic, gravitational or thermonuclear energy on dynamical time scales, typically the sound-crossing time for the system. These explosions include solar and stellar flares, eruptive phenomena in accretion discs, thermonuclear combustion on the surfaces of white dwarfs and neutron stars, violent magnetic reconnection in neutron stars, thermon...
متن کاملGamma-ray and Hard X-ray Imaging of Solar Flares
We discuss the scientific and technical aspects of high-resolution γ-ray and X-ray imaging of solar flares. The scientific necessity for imaging observations of solar flares and the implications of future observations for the study of solar flare electrons and ions are considered. Performance parameters for a future hard X-ray and γ-ray imager are then summarized. We briefly survey techniques f...
متن کاملGamma-Ray Polarimetry of Two X-Class Solar Flares
We have performed the first polarimetry of solar flare emission at γ-ray energies (0.2–1MeV). These observations were performed with the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) for two large flares: the GOES X4.8-class solar flare of 2002 July 23, and the X17-class flare of 2003 October 28. We have marginal polarization detections in both flares, at levels of 21 ± 9% and -...
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ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2004
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921304006556