Search Results - "Piskunov, N. E."

Hyperfine Splitting in the VALD Database of Spectral-line Parameters by Pakhomov, Yu. V., Ryabchikova, T. A., Piskunov, N. E.

“…The Vienna Atomic Line Database (VALD) has been supplemented with new data and new functionality—the possibility of taking into account the effect of hyperfine…”
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The Vienna Atomic Line Data Base – a Status Report by Ryabchikova, T A, Piskunov, N E, Stempels, H C, Kupka, F, Weiss, W W

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The Vienna Atomic Line Database: Present State and Future Development by Ryabchikova T. A., Piskunov N. E., Kupka F., Weiss W. W.

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Abundance analysis and searching for nonradial pulsations in the atmosphere of the chemically peculiar star HD 115708 by Semenko, E. A., Sachkov, M. E., Ryabchikova, T. A., Kudryavtsev, D. O., Piskunov, N. E.

“…We present the results of our abundance analysis for the magnetic chemically peculiar star HD 115708 based on high-resolution spectra. The atmospheric chemical…”
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Techniques for Surface Imaging of Stars by Piskunov, N. E., Rice, J. B.

“…Surface imaging of stars from the profiles of spectral lines has become an important tool in modern astrophysics. It is presently used for mapping the…”
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Near-polar starspots and polar dynamo waves by Novikov, S V, Piskunov, N E, Sokoloff, D D

“…A possible mechanism for the formation of near-polar magnetic spots on some stars with convective envelopes is proposed. The mechanism is based on the idea…”
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Hyperfine Splitting in the VALD Database of Spectral-line Parameters by Pakhomov, Yu. V, Ryabchikova, T. A, Piskunov, N. E

“…Astronomy Reports, 2019, Vol. 63, No. 12, pp. 1010-1021 The Vienna Atomic Line Database (VALD) has been supplemented with new data and new functionality -- the…”
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Magnetically Controlled Accretion on the Classical T Tauri Stars GQ Lupi and TW Hydrae by Johns-Krull, C. M, Chen, W, Valenti, J. A, Jeffers, S. V, Piskunov, N. E, Kuchukhov, O, Makaganiuk, V, Stempels, H. C, Snik, F, Keller, C, Rodenhuis, M

“…We present high spectral resolution ($R\approx108,000$) Stokes $V$ polarimetry of the Classical T Tauri stars (CTTSs) GQ Lup and TW Hya obtained with the…”
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A multichannel correlation filter based on a photorefractive crystal for the processing of varying speckle fields by Kulchin, Yu. N., Romashko, R. V., Piskunov, E. N., Kamshilin, A. A.

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VALD-2 - The New Vienna Atomic Line Database by Kupka F. G., Ryabchikova T. A., Piskunov Ν. E., Stempels H. C., Weiss W. W.

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Search for the Radial Magnetic-Field Gradient in the CP Star alpha(2) CVn by Romanyuk, I. I., Panchuk, V. E., Piskunov, N. E., Kudryavtsev, D. O.

“…The possibility of investigating the vertical structure of the magnetic field in chemically peculiar main-sequence stars is discussed. The nonuniform…”
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Search for the radial magnetic-field gradient in the CP star [alpha] 2 CVn by Romanyuk, I I, Panchuk, V E, Piskunov, N E, Kudryavtsev, D O

“…The possibility of investigating the vertical structure of the magnetic field in chemically peculiar main-sequence stars is discussed. The nonuniform…”
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Search for the radial magnetic-field gradient in the CP star α 2 CVn by Romanyuk, I. I., Panchuk, V. E., Piskunov, N. E., Kudryavtsev, D. O.

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Search for the radial magnetic-field gradient in the CP star a super(2) CVn by Romanyuk, I I, Panchuk, V E, Piskunov, N E, Kudryavtsev, DO

“…The possibility of investigating the vertical structure of the magnetic field in chemically peculiar main-sequence stars is discussed. The nonuniform…”
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Search for the radial magnetic-field gradient in the CP star α2 CVn by Romanyuk, I I, Panchuk, V E, Piskunov, N E, Kudryavtsev, D O

“…The possibility of investigating the vertical structure of the magnetic field in chemically peculiar main-sequence stars is discussed. The nonuniform…”
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Near-polar starspots and polar dynamo waves by NOVIKOV, S. V, PISKUNOV, N. E, SOKOLOFF, D. D

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CP star atmospheres based on individual ODFs by Kupka, F, Piskunov, N. E

“…We describe a new method for the computation of opacity distribution functions (ODFs) useful to calculate one-dimensional model atmospheres in local thermal…”
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