Zobrazeno 1 - 10
of 245
pro vyhledávání: '"Chandran, Benjamin D. G."'
Autor:
Bowen, Trevor A., Vasko, Ivan Y., Bale, Stuart D., Chandran, Benjamin D. G., Chasapis, Alexandros, de Wit, Thierry Dudok, Mallet, Alfred, McManus, Michael, Meyrand, Romain, Pulupa, Marc, Squire, Jonathan
Circularly polarized, nearly parallel propagating waves are prevalent in the solar wind at ion-kinetic scales. At these scales, the spectrum of turbulent fluctuations in the solar wind steepens, often called the transition-range, before flattening at
Externí odkaz:
http://arxiv.org/abs/2406.10446
Autor:
Bourouaine, Sofiane, Perez, Jean C., Chandran, Benjamin D. G., Jagarlamudi, Vamsee K., Raouafi, Nour E., Halekas, Jasper S.
In this work we analyze plasma and magnetic field data provided by the Parker Solar Probe (\emph{PSP}) and Solar Orbiter (\emph{SO}) missions to investigate the radial evolution of the heating of Alfv\'enic slow wind (ASW) by imbalanced Alfv\'en-Wave
Externí odkaz:
http://arxiv.org/abs/2403.17352
Autor:
Walters, Jada, Klein, Kristopher G., Lichko, Emily, Stevens, Michael L., Verscharen, Daniel, Chandran, Benjamin D. G.
In this work, we investigate how the complex structure found in solar wind proton velocity distribution functions (VDFs), rather than the commonly assumed two-component bi-Maxwellian structure, affects the onset and evolution of parallel-propagating
Externí odkaz:
http://arxiv.org/abs/2308.14944
In magnetized, stratified astrophysical environments such as the Sun's corona and solar wind, Alfv\'enic fluctuations ''reflect'' from background gradients, enabling nonlinear interactions and thus dissipation of their energy into heat. This process,
Externí odkaz:
http://arxiv.org/abs/2308.10389
Autor:
Bowen, Trevor A., Bale, Stuart D., Chandran, Benjamin D. G., Chasapis, Alexandros, Chen, Christopher H. K., de Wit, Thierry Dudok, Mallet, Alfred, Meyrand, Romain, Squire, Jonathan
The dissipation of magnetized turbulence is fundamental to understanding energy transfer and heating in astrophysical systems. Collisionless interactions, such as resonant wave-particle process, are known to play a role in shaping turbulent astrophys
Externí odkaz:
http://arxiv.org/abs/2306.04881
We solve the linearized gyrokinetic equation, quasineutrality condition, and Ampere's law to obtain the dispersion relation of microtearing modes (MTMs) in collisionless low-beta toroidal plasmas. Consistent with past studies, we find that MTMs are d
Externí odkaz:
http://arxiv.org/abs/2211.02103
Autor:
Verscharen, Daniel, Chandran, Benjamin D. G., Boella, Elisabetta, Halekas, Jasper, Innocenti, Maria Elena, Jagarlamudi, Vamsee K., Micera, Alfredo, Pierrard, Viviane, Stverak, Stepan, Vasko, Ivan Y., Velli, Marco, Whittlesey, Phyllis L.
The electrons are an essential particle species in the solar wind. They often exhibit non-equilibrium features in their velocity distribution function. These include temperature anisotropies, tails (kurtosis), and reflectional asymmetries (skewness),
Externí odkaz:
http://arxiv.org/abs/2206.10403
We show that large-amplitude, non-planar, Alfv\'en wave (AW) packets are exact nonlinear solutions of the relativistic MHD equations when the total magnetic-field strength in the local fluid rest frame ($b$) is a constant. We derive analytic expressi
Externí odkaz:
http://arxiv.org/abs/2105.14126
Motivated by recent Parker Solar Probe (PSP) observations of "switchbacks" (abrupt, large-amplitude reversals in the radial magnetic field, which exhibit Alfv\'enic correlations) we examine the dynamics of large-amplitude Alfv\'en waves in the expand
Externí odkaz:
http://arxiv.org/abs/2104.08321
A growing body of evidence suggests that the solar wind is powered to a large extent by an Alfv\'en-wave (AW) energy flux. AWs energize the solar wind via two mechanisms: heating and work. We use high-resolution direct numerical simulations of reflec
Externí odkaz:
http://arxiv.org/abs/2103.09365