Search Results - "Urnov, A. M."

Solar plasma temperature diagnostics in flares and active regions from spectral lines in the range 280–330 Å in the SPIRIT/CORONAS-F experiment by Shestov, S. V., Kuzin, S. V., Urnov, A. M., Ul’yanov, A. S., Bogachev, S. A.

“…Plasma temperature diagnostics in solar flares and active regions has been carried out using data from the SPIRIT spectroheliograph onboard the CORONAS-F…”
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Electron density diagnostics for various plasma structures of the solar corona based on Fe XI-FeXIII lines in the range 176–207 Å measured in the SPIRIT/CORONAS-F experiment by Shestov, S. V., Urnov, A. M., Kuzin, S. V., Zhitnik, I. A., Bogachev, S. A.

“…The relative intensities of FeXI-Fe XIII lines in the range 176–207 Å have been measured for various plasma structures of the solar corona using data from the…”
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On the spatial and temporal characteristics and formation mechanisms of soft X-ray emission in the solar corona by Urnov, A M, Shestov, S V, Bogachev, S A, Goryaev, F F, Zhitnik, I A, Kuzin, S V

“…Our main goal is to show that the spatial and temporal dynamics of the temperature content for plasma structures in the solar corona can be described…”
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Fe xii emission lines in solar active regions observed by the RES-C spectroheliograph on the CORONAS-I mission by Zhitnik, I. A., Kuzin, S. V., Urnov, A. M., Keenan, F. P., Pinfield, D. J.

“…Theoretical line intensity ratios involving Fe xii transitions in the 186–201 Å wavelength range are compared with observational data for five solar active…”
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High-Resolved x-ray Spectra of Hollow Atoms in a Femtosecond Laser-Produced Solid Plasma by Faenov, A Ya, Magunov, A I, Pikuz, T A, Skobelev, I Yu, Pikuz, S A, Urnov, A M, Abdallah, J, Clark, R E H, Cohen, J, Jonson, R P, Kyrala, G A, Wilke, M D, Maksimchuk, A, Umstadter, D, Nantel, N, Doron, R, Behar, E, Mandelbaum, P, Schwob, J J, Dubau, J, Rosmej, F B, Osterheld, A

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Main Results of the SPIRIT Experiment Onboard the CORONAS-F Satellite by Zhithik, I A, Kuzin, S V, Sobel'man, I I, Bugaenko, O I, Ignat'ev, A P, Mitrofanov, A V, Oparin, S N, Pertsov, A A, Slemzin, V A, Sukhodrev, N K, Urnov, A M

“…The main results of the SPIRIT experiment on imaging spectroscopy of the Sun in the soft X-ray and extreme vacuum UV range are presented. The results were…”
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Diagnostics of the anisotropy of the electron distribution from the analysis of x-ray line polarization by Dubau, J, Inal, M K, Urnov, A M

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Physics of post-eruptive solar arcades: Interpretation of RATAN-600 and STEREO spacecraft observations by Livshits, M. A., Urnov, A. M., Goryaev, F. F., Kashapova, L. K., Grigor’eva, I. Yu, Kal’tman, T. I.

“…Results of simultaneous measurements of radiation fluxes from post-eruption arcades on the Sun at 171, 195, 284, and 304 Å (from STEREO spacecraft data) and at…”
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Solar EUV spectra obtained during the SPIRIT experiment onboard the CORONAS-F satellite: A catalog of lines in the range 176–207 Å by Shestov, S. V., Bozhenkov, S. A., Zhitnik, I. A., Kuzin, S. V., Urnov, A. M., Beigman, I. L., Goryaev, F. F., Tolstikhina, I. Yu

“…We present a catalog of 65 spectral lines in the range 176–207 Å recorded by the RES spectroheliograph in active regions and flares during the SPIRIT…”
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Atomic data for doubly-excited states 2lnl′ of He-like ions and 1s2lnl′ of Li-like ions with Z=6–36 and n=2,3 by Goryaev, F.F., Vainshtein, L.A., Urnov, A.M.

“…The wavelengths and radiative transition probabilities for transitions 2lnl′→1snl″, 2lnl′→1s2l″, 1s2lnl′→1s2nl″, 1s2lnl′→1s22l″, and the autoionization decay…”
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Dynamic 10 MK plasma structures observed in monochromatic full-Sun images by the SPIRIT spectroheliograph on the CORONAS-F mission by Zhitnik, I. A., Bugaenko, O. I., Ignat'ev, A. P., Krutov, V. V., Kuzin, S. V., Mitrofanov, A. V., Oparin, S. N., Pertsov, A. A., Slemzin, V. A., Stepanov, A. I., Urnov, A. M.

“…High-resolution temporal series of monochromatic full-Sun images in the L Mg xii emission line at 8.42 Å have been obtained by the SPectroheliographIc X-Ray…”
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Long-lived hot coronal structures observed with CORONAS-F/SPIRIT in the Mg XII line by Grechnev, V V, Kuzin, S V, Urnov, A M, Zhitnik, I A, Uralov, A M, Bogachev, S A, Livshits, M A, Bugaenko, O I, Zandanov, V G, Ignat'ev, A P, Krutov, V V, Oparin, S N, Pertsov, A A, Slemzin, V A, Chertok, I M, Stepanov, A I

“…Large-scale hot features were detected and observed several times high in the solar corona in the high-temperature Mg XII line (T = 5-20 MK, T ^sub max^ = 10…”
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X-ray and EUV diagnostics of active plasma structures with the RES spectroheliograph in the SPIRIT experiment onboard the CORONAS-F satellite by Zhitnik, I A, Kuzin, S V, Urnov, A M, Bogachev, S A, Goryaev, F F, Shestov, S V

“…We provide a brief overview of the main methods and results of spectroscopic studies of several active plasma structures in the solar corona with the RES…”
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The Dynamics of High-Temperature Plasma in the Solar Corona according to SPIRIT Observations in Mg XII 8.42 Å Line by Bogachev, S. A., Kuzin, S. V., Zhitnik, I. A., Urnov, A. M., Grechnev, V. V.

“…The spatial-distribution dynamics of the hot coronal plasma with T 10 MK during a period of high solar activity is studied. We analyze images of the NOAA 9830…”
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On Kβ radiation of Ar16+ ions in coronal plasma by Goryaev, F. F., Urnov, A. M., Bertschinger, G., Marchuk, A. G., Kunze, H. -J., Dubau, J.

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On electron impact ionization cross-sections and rates for multiply charged ions by Shevelko, V. P., Urnov, A. M., Vainshtein, L. A., Müller, A.

“…The electron impact ionization cross-sections σ and rates $\langle v\sigma\rangle$ for multiply charged ions are calculated using the Coulomb–Born…”
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X-ray spectra of multiply-charged hollow ions in the emission from a femtosecond laser plasma by Urnov, A. M., Dubau, J., Faenov, A. Ya, Pikuz, T. A., Skobelev, I. Yu, Abdallah, J., Clark, R. E. H., Cohen, J., Johnson, R. P., Kyrala, G. A., Wilke, M. D., Osterheld, A. L.

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An iterative method in a probabilistic approach to the spectral inverse problem: Differential emission measure from line spectra and broadband data by Goryaev, F. F, Parenti, S, Urnov, A. M, Oparin, S. N, Hochedez, J. -F, Reale, F

“…A&A 523, A44 (2010), 15 pp Inverse problems are of great importance in astrophysics for deriving information about the physical characteristics of hot…”
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On the verification of atomic data for K α radiation spectra from the TEXTOR tokamak by Urnov, A. M., Goryaev, F. F., Bertschinger, G., Kunze, H. -J., Marchuk, O.

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Solar plasma temperature diagnostics in flares and active regions from spectral lines in the range 280-330 Aa in the SPIRIT/CORONAS-F experiment by Shestov, S V, Kuzin, S V, Urnov, A M, Ul'yanov, A S, Bogachev, S A

“…Plasma temperature diagnostics in solar flares and active regions has been carried out using data from the SPIRIT spectroheliograph onboard the CORONAS-F…”
Get full text