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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Porovnání modelů relativistické čáry železa
 Svoboda, Jiří ; Dovčiak, Michal ; Goosmann, René ; Karas, Vladimír
The analysis of the broad iron line profile in the X-ray spectra of active galactic nuclei and black hole X-ray binaries allows us to constrain the spin parameter of the black hole. We compare the constraints on the spin value for two X-ray sources, MCG-6-30-15 and GX 339-4, with a broad iron line using present relativistic line models in XSPEC - LAOR and KYRLINE.
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Detailní měření poloidální rychlosti fluktuací hustoty a plovoucího potenciálu v okrajovém plazmatu tokamaku CASTOR
 Brotánková, Jana ; Stöckel, Jan ; Hron, Martin ; Ďuran, Ivan ; Horáček, Jan
The ion saturation current and floating potential are measured with high temporal (1 micro s) and spatial (2.5 mm) resolutions within the edge plasma of CASTOR tokamak by two poloidally spaced radial arrays of Langmuir probes. The radial electric field and the phase velocity of plasma fluctuations are determined. It is found that radial profiles of both of these quantities are strongly sheared in the proximity of the last closed flux surface. In the proximity of the VSL, the shearing rate is higher than the characteristic frequency of plasma fluctuation and reduction of fluctuation level is observed.
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Statistická studie fitování magnetických oblaků
 Lynnyk, A. ; Vandas, Marek
The paper is a statictical study on comparisons between a model of an expanding magnetic cloud and observations.
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