Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Yuriy Voitenko"'
Autor:
Jinsong Zhao, David M. Malaspina, T. Dudok de Wit, Viviane Pierrard, Yuriy Voitenko, Giovanni Lapenta, Stefaan Poedts, Stuart D. Bale, Justin C. Kasper, Davin Larson, Roberto Livi, Phyllis Whittlesey
Publikováno v:
Astrophysical Journal Letters, Vol. 938, no.2, p. L21 (2022)
Using Parker Solar Probe observations, this Letter reports for the first time the existence of broadband electrostatic waves below the electron cyclotron frequency in the near-Sun solar wind and even in the extended solar corona. These waves have enh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1185ec666d7a73394ccf9aec53a1c51c
https://lirias.kuleuven.be/handle/20.500.12942/704998
https://lirias.kuleuven.be/handle/20.500.12942/704998
Autor:
Yuriy Voitenko, Grigol Gogoberidze
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 497:3472-3476
Alfvénic turbulence in the fast solar wind is imbalanced: the energy of the (dominant) waves propagating outward from the Sun is much larger than energy of inward-propagating (subdominant) waves. At large scales Alfvén waves are non-dispersive and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4614f6b200a71ab0e6680bff779dc541
https://doi.org/10.1093/mnras/staa2146
https://doi.org/10.1093/mnras/staa2146
Autor:
Jinsong Zhao, Louchuang Lee, Huasheng Xie, Yuhang Yao, Dejin Wu, Yuriy Voitenko, Viviane, Pierrard
Publikováno v:
The Astrophysical Journal : an international review of astronomy and astronomical physics, Vol. 930, no.1, p. 95 (2022)
Wave–particle interactions can induce energy transfer at different timescales in collisionless plasmas, which leads to the reshaping of the particle velocity distribution function. Therefore, how to quantify wave–particle interactions is one of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26631f3eb4676b4ffb11cbb6527f1d34
https://doi.org/10.3847/1538-4357/ac59b7
https://doi.org/10.3847/1538-4357/ac59b7
Autor:
Yuriy Voitenko, Grigol Gogoberidze
Publikováno v:
Astrophysics and Space Science. 365
Using a semi-phenomenological model of the imbalanced Alfvenic turbulence, we study the turbulence transition from magnetohydrodynamic to sub-ion kinetic scales in the conditions typical for the fast solar wind. We show that the transition takes plac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b40be72065cc3edda8f9ac30227baed
https://doi.org/10.1007/s10509-020-03865-8
https://doi.org/10.1007/s10509-020-03865-8
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 480:1864-1869
We study Alfvenic turbulent fluctuations and their spectral properties from MHD to kinetic scales and compare with recent measurements of the Spektr-R spacecraft. An apparent contradiction is found between the temperature spectra derived from the Spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32b73d38bcc0cdc70f67bbf3eef96278
https://doi.org/10.1093/mnras/sty1914
https://doi.org/10.1093/mnras/sty1914
Autor:
Yuriy Voitenko, Yuhang Yao, Dejin Wu, Jinsong Zhao, Wen Liu, Huasheng Xie, Viviane Pierrard, Chen Shi, Heyu Sun
Publikováno v:
The Astrophysical Journal Letters. 916:L4
This Letter investigates the electron heat flux instability using the radial models of the magnetic field and plasma parameters in the inner heliosphere. Our results show that both the electron acoustic wave and the oblique whistler wave are unstable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aae6bc33ef1c5bc7528a15abde1106f0
https://doi.org/10.3847/2041-8213/ac0f02
https://doi.org/10.3847/2041-8213/ac0f02
Autor:
J. De Keyser, Yuriy Voitenko
Publikováno v:
Nonlinear Processes in Geophysics, Vol 18, Iss 5, Pp 587-597 (2011)
A weakly dispersive sub-range (WDR) of kinetic Alfv\'en turbulence is distinguished and investigated for the first time in the context of MHD/kinetic turbulence transition. We found perpendicular wavenumber spectra ~ k^{-3} and ~ k^{-4} formed in WDR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45a3a6ec370f887aac82e668a20a1c48
https://www.nonlin-processes-geophys.net/18/587/2011/
https://www.nonlin-processes-geophys.net/18/587/2011/
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 452:4236-4246
We study a non-resonant instability of kinetic Alfven waves (KAWs) driven by compensated currents. Such currents set up in response to energetic ion beams occurring in many space and astrophysical plasmas, like foreshock regions in the solar wind and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65f5254891f48e39ec3c0d795c1d628d
https://doi.org/10.1093/mnras/stv1533
https://doi.org/10.1093/mnras/stv1533
Autor:
Yuriy Voitenko, Viviane Pierrard
Publikováno v:
Solar Physics. 290:1231-1241
Recent theoretical advances and observations indicate that magneto-hydrodynamic (MHD) Alfvenic turbulence is anisotropic and cascades mainly toward small scales perpendicular to the mean magnetic field. Eventually, the turbulence cascade reaches the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ff3284193a0444a7444f322682ec877
https://doi.org/10.1007/s11207-015-0661-8
https://doi.org/10.1007/s11207-015-0661-8
Publikováno v:
BASE-Bielefeld Academic Search Engine
Solar Physics
Solar Physics, Springer Verlag, 2017, 292 (9), pp.1-1. ⟨10.1007/s11207-017-1140-1⟩
Solar Physics
Solar Physics, Springer Verlag, 2017, 292 (9), pp.1-1. ⟨10.1007/s11207-017-1140-1⟩
We study the influence of kinetic-scale Alfv\'enic turbulence on the generation of plasma radio emission in the solar coronal regions where the plasma/magnetic pressure ratio $\beta $ is smaller than the electron/ion mass ratio $m_{e}/m_{i}$. The pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47e0a341bf3691bb9e62146eb08f1464
https://doi.org/10.1007/s11207-017-1140-1
https://doi.org/10.1007/s11207-017-1140-1