منابع مشابه
Statistical Study of Solar X-Ray Jets Observed with the Yohkoh Soft X-Ray Telescope
We have found 100 X-ray jets in the database of full Sun images taken with the Soft X-ray Telescope (SXT) aboard Yohkoh during the period from 1991 November through 1992 April. A statistical study for these jets results in the following characteristics: 1) Most are associated with small flares (microflaressubflares) at their footpoints. 2) The lengths lie in the range of a few x 10-4 x 10 km. 3...
متن کاملOptimum driving a Z-pinch for soft X-Ray lasers
A capillary plasma z-pinch as an alternative active medium of soft X-Ray lasers was studied experimentally and theoretically. The theoretical analysis was based on the self consistent solution of the so called “snow plow” model. The dynamics of pinched plasma is determined by the capillary parameters and by the time dependence of electrical current passing through it. The current time dependenc...
متن کاملStatistics of Fluctuations in the Solar Soft X-ray Emission
X-ray emission from the Sun Ñuctuates as a result of occasional Ñare events. We have calculated the power spectra of the solar soft X-ray variations using the photometric data of the GOES 6 satellite. The data cover the period 1991 September to 1994 April, about 32 months in total, and we have worked with 10 minute averages. We Ðnd that the total power spectral densities (PSDs) have three disti...
متن کاملOn the soft X-ray spectrum of cooling flows
Strong evidence for cooling flows has been found in low-resolution X-ray imaging and spectra of many clusters of galaxies. However, high-resolution X-ray spectra of several clusters from the Reflection Grating Spectrometer on XMM-Newton now show a soft X-ray spectrum inconsistent with a simple cooling flow. The main problem is a lack of the emission lines expected from gas cooling below 1–2 keV...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1969
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/145.4.435