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Periodic Solar Flare X-ray Emission
Nature, 1971GLENCROSS1 has reported the observation of an apparent 6 min periodicity during X-ray flares observed in the 0.1 to 0.3 nm wavelength band. The detector was a soft X-ray sensor on the satellite OSO-IV launch in 1967. The observed flare profiles were examined in more than thirty X-ray events coincident with visible flares, and a histogram was ...
P E, Fehlau +5 more
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X-ray emission from solar flares
Journal of Astrophysics and Astronomy, 2008Solar X-ray Spectrometer (SOXS), the first space-borne solar astronomy experiment of India was designed to improve our current understanding of X-ray emission from the Sun in general and solar flares in particular. SOXS mission is composed of two solid state detectors, viz., Si and CZT semiconductors capable of observing the full disk Sun in X-ray ...
Rajmal Jain +2 more
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1974
The Sun is the brightest source in the sky between 0.5 and 10 keV. Its X-ray intensity, which is highly variable, can range from 10-4 erg cm-2 s-1 for the quiet Sun to several erg cm-2 s-1 for large flares. It is always at least three orders of magnitude brighter than the strongest extrasolar source, Sco X-l, and can be studied in much more detail than
Giuseppe Vaiana, Wallace Tucker
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The Sun is the brightest source in the sky between 0.5 and 10 keV. Its X-ray intensity, which is highly variable, can range from 10-4 erg cm-2 s-1 for the quiet Sun to several erg cm-2 s-1 for large flares. It is always at least three orders of magnitude brighter than the strongest extrasolar source, Sco X-l, and can be studied in much more detail than
Giuseppe Vaiana, Wallace Tucker
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X-Ray Emission from the Solar System Bodies: Connection with Solar X-Rays and Solar Wind
AIP Conference Proceedings, 2010Today the field of planetary X‐rays is very dynamic and in the forefront of new research. Apart from the Sun, the known X‐ray emitters now include planets (Venus, Earth, Mars, Jupiter, and Saturn), planetary satellites (Moon, Io, Europa, and Ganymede), all active comets, the Io plasma torus, the rings of Saturn, the coronae (exospheres) of Earth, Mars ...
Anil Bhardwaj +5 more
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On anisotropy of solar hard X-ray emission
Solar Physics, 1974A number of solar X-ray events above 10 keV and 20 keV were compiled in order to test for evidence of anisotropic emission. The results are not definite, although the two samples show apparently different behaviours.
G. Pizzichini +2 more
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Hard X-ray emission from the solar corona
The Astronomy and Astrophysics Review, 2008This review surveys hard X-ray emissions of non-thermal electrons in the solar corona. These electrons originate in flares and flare-related processes. Hard X-ray emission is the most direct diagnostic of electron presence in the corona, and such observations provide quantitative determinations of the total energy in the non-thermal electrons. The most
S. Krucker +11 more
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Hard X-ray Emission Processes in Solar Flares
Solar Physics, 1987Solar hard X-ray emission is one of the most direct diagnostics of accelerated particles during solar flares. In this review, the current understanding of hard X-ray emission processes is discussed: first the different emission mechanisms (in particular inverse Compton radiation, energetic ion or electron bremsstrahlung) are presented and the ...
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Multitemperature analysis of solar X-ray line emission
Solar Physics, 1980In this paper we propose and test a new method of multitemperature analysis of solar X-ray spectra. The method, which is based on a technique developed by Withbroe (1975), is designed to be used in the interpretation of spectra, to be measured by the X-Ray Polychromator on the Solar Maximum Mission.
J. Sylwester, J. Schrijver, R. Mewe
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X-Ray Emission in the Solar System
AIP Conference Proceedings, 2002Many objects in the solar system produce x‐rays, including the Sun, Venus, Earth, Mars, Jupiter, and comets. A number of emission mechanisms account for this x‐ray emission including scattering and fluorescence of solar x‐rays, impact excitation of atoms and molecules by energetic electrons and ions, and by charge transfer of highly charged ions with ...
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