Improved data for solar flare X-ray spectral analysis
نویسندگان
چکیده
منابع مشابه
Regularized Energy-dependent Solar Flare Hard X-ray Spectral Index
The deduction from solar flare X-ray photon spectroscopic data of the energy dependent model-independent spectral index is considered as an inverse problem. Using the well developed regularization approach we analyze the energy dependency of spectral index for a high resolution energy spectrum provided by Ramaty High Energy Solar Spectroscopic Imager (RHESSI). The regularization technique produ...
متن کاملSize dependence of solar X-ray flare properties
Non-thermal and thermal parameters of 85 solar flares of GOES class B1 to M6 (background subtracted classes A1 to M6) have been compared to each other. The hard X-ray flux has been measured by RHESSI and a spectral fitting provided flux and spectral index of the non-thermal emission, as well as temperature and emission measure of the thermal emission. The soft X-ray flux was taken from GOES mea...
متن کاملSolar X-ray Flare Hazards on the Surface of Mars
Putative organisms on the Martian surface would be exposed to potentially high doses of ionizing radiation during strong solar X-ray flares. We extrapolate the observed flare frequency-energy release scaling relation to total X-ray energies much larger than seen so far for the sun, an assumption supported by observations of flares on other solarand subsolar-mass main sequence stars. Flare spect...
متن کاملSolar Flare Hard X-ray Emission from the High Corona
One of the largest solar hard X-ray (HXR) flares and solar energetic particle (SEP) events recorded by the Mars Odyssey mission while orbiting Mars occurred on 2002 October 27 and is related to a very fast (∼2300 km s ) coronal mass ejection (CME). From the Earth, the flare site is 40.4 3.5 behind the solar limb and 1 only emissions from the high corona at least 1.5 # 10 km radially above the m...
متن کاملPositions and sizes of X-ray solar flare sources
Aims. The positions and source sizes of X-ray sources taking into account Compton backscattering (albedo) are investigated. Methods. Using a Monte Carlo simulation of X-ray photon transport including photo-electric absorption and Compton scattering, we calculate the apparent source sizes and positions of X-ray sources at the solar disk for various source sizes, spectral indices and directivitie...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2004
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20034315