Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Vlahos, Loukas"'
Publikováno v:
A&A 691, A149 (2024)
Magnetic turbulence is classified as weak or strong based on the relative amplitude of the magnetic field fluctuations compared to the mean field. These two classifications have different energy transport properties. This study analyzes interstellar
Externí odkaz:
http://arxiv.org/abs/2409.16699
Autor:
Vlahos, Loukas, Isliker, Heinz
We review the current literature on the formation of Coherent Structures (CoSs) in strongly turbulent 3D magnetized plasmas. CoSs (Current Sheets (CS), magnetic filaments, large amplitude magnetic disturbances, vortices, and shocklets) appear intermi
Externí odkaz:
http://arxiv.org/abs/2303.15351
Autor:
Sioulas, Nikos, Huang, Zesen, Shi, Chen, Velli, Marco, Tenerani, Anna, Vlahos, Loukas, Bowen, Trevor A., Bale, Stuart D., Bonnell, J. W., Harvey, P. R., Larson, Davin, Pulupa, arc, Livi, Roberto, Woodham, L. D., Horbury, T. S., Stevens, Michael L., de Wit, T. Dudok, MacDowall, R. J., Malaspina, David M., Goetz, K., Huang, Jia, Kasper, Justin, Owen, Christopher J., Maksimović, Milan, Louarn, P., Fedorov, A.
Parker Solar Probe and Solar Orbiter data are used to investigate the radial evolution of magnetic turbulence between $0.06 ~ \lesssim R ~\lesssim 1$ au. The spectrum is studied as a function of scale, normalized to the ion inertial scale $d_{i}$. In
Externí odkaz:
http://arxiv.org/abs/2209.02451
We present test-particle simulations of electrons during a nonlinear MHD simulation of a type-I edge localized mode (ELM) to explore the effect of an eruptive plasma filament on the kinetic level. The electrons are moderately heated and accelerated d
Externí odkaz:
http://arxiv.org/abs/2208.03362
Autor:
Sioulas, Nikos, Huang, Zesen, Velli, Marco, Chhiber, Rohit, Cuesta, Manuel E., Shi, Chen, Matthaeus, William H., Bandyopadhyay, Riddhi, Vlahos, Loukas, Bowen, Trevor A., Qudsi, Ramiz A., Bale, Stuart D., Owen, Christopher J., Louarn, P., Fedorov, A., Maksimovic, Milan, Stevens, Michael L., Kasper, Justin, Larson, Davin, Livi, Roberto
$PSP$ and $SolO$ data are utilized to investigate magnetic field intermittency in the solar wind (SW). Small-scale intermittency $(20-100d_{i})$ is observed to radially strengthen when methods relying on higher-order moments are considered ($SF_q$, $
Externí odkaz:
http://arxiv.org/abs/2206.00871
Autor:
Sioulas, Nikos, Velli, Marco, Chhiber, Rohit, Vlahos, Loukas, Matthaeus, William H., Bandyopadhyay, Riddhi, Cuesta, Manuel E., Shi, Chen, Bowen, Trevor A., Qudsi, Ramiz A., Stevens, Michael L., Bale, Stuart D.
We use data from the first six encounters of Parker Solar Probe and employ the Partial Variance of Increments ($PVI$) method to study the statistical properties of coherent structures in the inner heliosphere with the aim of exploring physical connec
Externí odkaz:
http://arxiv.org/abs/2201.10067
Parker (1983) suggested a mechanism for the formation of current sheets (CSs) in the solar atmosphere. His main idea was that the tangling of coronal magnetic field lines by photospheric random flows facilitates the continuous formation of CSs in the
Externí odkaz:
http://arxiv.org/abs/2108.01722
Publikováno v:
A&A 657, A8 (2022)
In this article, we study the physics of charged particle energization inside a strongly turbulent plasma, where current sheets naturally appear in evolving large-scale magnetic topologies, but they are split into two populations of fractally distrib
Externí odkaz:
http://arxiv.org/abs/2107.08314
We analyze the stochastic acceleration of particles inside a fully developed turbulent plasma. It is well known that large-amplitude magnetic fluctuations and coherent structures in such an environment obey a fractal scaling, and our specific aim is
Externí odkaz:
http://arxiv.org/abs/2005.02668
We analyze the transport properties of charged particles (ions and electrons) interacting with randomly formed magnetic scatterers (e.g.\ large scale local ``magnetic fluctuations'' or ``coherent magnetic irregularities'' usually present in strongly
Externí odkaz:
http://arxiv.org/abs/1911.07973