Search Results - "N. S. Polosukhina"

Lithium in chemically peculiar CP stars with magnetic fields by Polosukhina, N S, Shavrina, A V

“…The problem of lithium in chemically peculiar Ap-CP stars has been the subject of debate for many years. The main reason for this is a lack of spectral…”
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Quantitative analysis of the spectrum of the magnetic roAp star HD 83368 with “lithium” spots by Shavrina, A V, Polosukhina, N S, Tsymbal, V, Khalak, V

“…Preliminary results of a synthetic-spectrum analysis of the elemental abundances in the atmosphere of the "spotted" roAp star HD 83368 are presented. The…”
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A new approach to modeling the surface magnetic fields of chemically peculiar stars by Khalak, V R, Khalak, Yu N, Shavrina, A V, Polosukhina, N S

“…A reconstruction of the line-of-sight component and modulus of the surface-magnetic-field vector is proposed, using a model with artificial point sources of…”
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Effects of spot structure of lines of rare earths and non-LTE effects on lithium abundance estimates for two roAp stars by Mashonkina, L I, Shavrina, A V, Khalack, V, Polosukhina, N S, Tsymbal, V V, Vygonets, V

“…Taking into account blending of the lithium 6108 Å line profile by adjacent rare-earth lines together with their spotted surface structure does not appreciably…”
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The chemical compositions and surface structures of two roAp stars with lithium spots (HD 83368 and HD 60435) by Shavrina, A V, Polosukhina, N S, Zverko, J, Khalak, V, Tsymbal, V V, Ziznovsky, J

“…The spectra of two roAp stars have been analyzed as part of a project to study lithium in magnetic Ap stars. Variability of the Li I 6708 Å resonance doublet…”
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Anomalous abundance of lithium in the roAp star HD 12098 recently discovered in the northern hemisphere of the sky by Shavrina, A. V., Polosukhina, N. S., Drake, N. A., Kudryavtsev, D. O.

“…Spectral observations of Ap-CP stars with the BTA (Special Astronomical Observatory, Russian Academy of Sciences) using the NES echelle spectrometer have…”
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Lithium and the Li-Li isotope ratio in the atmospheres of some sharp-lined roAp stars by Shavrina, A V, Polosukhina, N S, Khan, S, Pavlenko, Ya V, Kudryavtsev, D O, Khalack, V R, Mikhailitskaya, N G, Lyubchik, Yu P, Yushchenko, A V, Hatzes, A, Mkrtichian, D E, Il'in, I V

“…The lambda 6708 A and 6103 A lithium lines in the high-resolution spectra of some sharp-lined roAp stars are analyzed using three spectral-synthesis codes…”
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Lithium and the 6Li-7Li isotope ratio in the atmospheres of some sharp-lined roAp stars by Shavrina, A. V., Polosukhina, N. S., Khan, S., Pavlenko, Ya. V., Kudryavtsev, D. O., Khalack, V. R., Mikhaĭlitskaya, N. G., Lyubchik, Yu. P., Yushchenko, A. V., Hatzes, A., Mkrtichian, D. E., Il’in, I. V.

“…The λ 6708 Å and 6103 Å lithium lines in the high-resolution spectra of some sharp-lined roAp stars are analyzed using three spectral-synthesis codes STARSP,…”
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Characteristic features of the spectrum of the unique roAp star HD 101065 near the 6708 Å lithium resonance doublet by Shavrina, A V, Polosukhina, N S, Pavlenko, Ya V, Yushchenko, A V, Gopka, V F

“…Synthetic spectrum of the peculiar roAp star HD 101065 (Przybylski's Star) have been computed in the wavelength interval 6705.8-6708.7 Å in order to describe…”
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Rapid variations in the spectrum of the magnetic variable star HD215441 by POLOSUKHINA, N. S, CHUVAEV, K. K

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LITHIUM BLEND FITTING FOR roAp STAR HD101065 (PRZYBYLSKI'S STAR) by A. V. Shavrina, V. Khalack, N. S. Polosukhina, J. Zverko, J. Zhiznovsky, V. F. Gopka, P. North, V. V. Tsymbal, A. V. Yushchenko

“…We have considered the possibility for modeling of remarkable spectral feature 6708 Å for HD101065 (Przybylski's star) in two ways - as a blend of Li and REE…”
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Some features of roAp stars spectrum by A. V. Shavrina, N. S. Polosukhina, V. V. Tsymbal, Ya. V. Pavlenko, A. V. Yushchenko, V. F. Gopka, A. A. Veles

“…We have shown the possibility for modelling Li blend6708 A, for two roAp stars, HD83368 and HD60435, taking into account lithium spots on the surfaces of these…”
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LI I 6708A BLEND IN THE SPECTRA OF STRONGLY MAGNETIC STAR HD166473 by A. V. Shavrina, V. Khalack, Y. Glagolevskij, D. Lyashko, J. Landstreet, F. Leone, N. S. Polosukhina, M. Giarrusso

“…The analysis of Li I 6708 Ǻ blend in the spectra of HD166473 was performed for 6 rotational phases distributed over the whole rotational period (P~9.5 years)…”
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LITHIUM SPOTS IN THE NORTHERN roAP STAR HD 12098 by A. V. Shavrina, Yu. V. Glagolevskij, N. A. Drake, N. S. Polosukhina, Ya. V. Pavlenko, D. O. Kudryavtsev

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Characteristic features of the spectrum of the unique roAp star HD 101065 near the 6708 Aa lithium resonance doublet by Shavrina, A V, Polosukhina, N S, Pavlenko, YaV, Yushchenko, A V, Gopka, V F

“…Synthetic spectrum of the peculiar roAp star HD 101065 (Przybylski's Star) have been computed in the wavelength interval 6705.8-6708.7 Aa in order to describe…”
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Lithium and the super(6)Li- super(7)Li isotope ratio in the atmospheres of some sharp-lined roAp stars by Shavrina, A V, Polosukhina, N S, Khan, S, Pavlenko, YaV, Kudryavtsev, DO, Khalack, V R, Mikhalitskaya, NG, Lyubchik, YuP, Yushchenko, A V, Hatzes, A, Mkrtichian, DE, Il'in, I V

“…The l 6708 Aa and 6103 Aa lithium lines in the high-resolution spectra of some sharp-lined roAp stars are analyzed using three spectral-synthesis codes STARSP,…”
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Abnormal lithium abundance in several Ap-Bp stars by Shavrina, A, Polosukhina, N. S, Drake, N. A, Kudryavtsev, D. O, Gopka, V. F, Yushchenko, V. A, Yushchenko, A. V

“…Using observations of rapidly rotating roAp star HD 12098, obtained with 6m telescope of SAO RAS in 2005-2008 in nine rotational phases (0.001-0.817), and code…”
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Variability of the spectrum of β CrB in the region of the lithium line Li I λ6708Å by Polosukhina, N. S., Malanushenko, V. P., Hack, M., Castelli, F.

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Lithium and the 6Li-7Li isotope ratio in the atmospheres of some sharp-lined roap stars by SHAVRINA, A. V, POLOSUKHINA, N. S, MKRTICHIAN, D. E, IL'IN, I. V, SAMUS, N, KHAN, S, PAVLENKO, Ya. V, KUDRYAVTSEV, D. O, KHALACK, V. R, MIKHARLITSKAYA, N. G, LYUBCHIK, Yu. P, YUSHCHENKO, A. V, HATZES, A

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Chemical composition of components of the binary lithium star ? Peg by Lyubimkov, L. S., Polosukhina, N. S., Rosgopchin, S. I.

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