Zobrazeno 1 - 10
of 369
pro vyhledávání: '"Tenerani, A."'
A unified linear theory that includes forced reconnection as a particular case of Alfv\'en resonance is presented. We consider a generalized Taylor problem in which a sheared magnetic field is subject to a time-dependent boundary perturbation oscilla
Externí odkaz:
http://arxiv.org/abs/2404.19616
Autor:
Shi, Chen, Velli, Marco, Toth, Gabor, Zhang, Kun, Tenerani, Anna, Huang, Zesen, Sioulas, Nikos, van der Holst, Bart
Publikováno v:
ApJL 964 L28 (2024)
Parker Solar Probe observations reveal that the near-Sun space is almost filled with magnetic switchbacks (``switchbacks'' hereinafter), which may be a major contributor to the heating and acceleration of solar wind. Here, for the first time, we deve
Externí odkaz:
http://arxiv.org/abs/2401.11334
We investigate the local proton energization at magnetic discontinuities/intermittent structures and the corresponding kinetic signatures in velocity phase space in Alfv\'enic and non-Alfv\'enic wind streams observed by Parker Solar Probe. By means o
Externí odkaz:
http://arxiv.org/abs/2309.07862
We conduct 3D magnetohydrodynamic (MHD) simulations of decaying turbulence in the solar wind context. To account for the spherical expansion of the solar wind, we implement the expanding box model. The initial turbulence comprises uncorrelated counte
Externí odkaz:
http://arxiv.org/abs/2308.12376
We investigate dispersive and kinetic effects on the evolution of a two-dimensional kinked Alfv\'en wave packet by comparing results from MHD, Hall-MHD and hybrid simulations of a low-$\beta$ plasma. We find that the Hall term determines the overall
Externí odkaz:
http://arxiv.org/abs/2302.06150
We study the parametric decay instability of parallel propagating Alfv\'en wave in a low-beta plasma using one-dimensional fully kinetic simulations. We focus for the first time on the conversion of the energy stored in the initial Alfv\'en wave into
Externí odkaz:
http://arxiv.org/abs/2301.07646
Autor:
Raouafi, N. E., Matteini, L., Squire, J., Badman, S. T., Velli, M., Klein, K. G., Chen, C. H. K., Matthaeus, W. H., Szabo, A., Linton, M., Allen, R. C., Szalay, J. R., Bruno, R., Decker, R. B., Akhavan-Tafti, M., Agapitov, O. V., Bale, S. D., Bandyopadhyay, R., Battams, K., Berčič, L., Bourouaine, S., Bowen, T., Cattell, C., Chandran, B. D. G., Chhiber, R., Cohen, C. M. S., D'Amicis, R., Giacalone, J., Hess, P., Howard, R. A., Horbury, T. S., Jagarlamudi, V. K., Joyce, C. J., Kasper, J. C., Kinnison, J., Laker, R., Liewer, P., Malaspina, D. M., Mann, I., McComas, D. J., Niembro-Hernandez, T., Panasenco, O., Pokorný, P., Pusack, A., Pulupa, M., Perez, J. C., Riley, P., Rouillard, A. P., Shi, C., Stenborg, G., Tenerani, A., Verniero, J. L., Viall, N., Vourlidas, A., Wood, B. E., Woodham, L. D., Woolley, T.
Publikováno v:
Space Science Reviews 2023
Launched on 12 Aug. 2018, NASA's Parker Solar Probe had completed 13 of its scheduled 24 orbits around the Sun by Nov. 2022. The mission's primary science goal is to determine the structure and dynamics of the Sun's coronal magnetic field, understand
Externí odkaz:
http://arxiv.org/abs/2301.02727
Autor:
Shi, Chen, Velli, Marco, Lionello, Roberto, Sioulas, Nikos, Huang, Zesen, Halekas, Jasper S., Tenerani, Anna, Réville, Victor, Dakeyo, Jean-Baptiste, Maksimović, Milan, Bale, Stuart D.
The heating and acceleration of the solar wind remains one of the fundamental unsolved problems in heliophysics. It is usually observed that the proton temperature $T_i$ is highly correlated with the solar wind speed $V_{SW}$, while the electron temp
Externí odkaz:
http://arxiv.org/abs/2301.00852
Publikováno v:
Fundamental Plasma Physics, Vol 11, Iss , Pp 100064- (2024)
A unified linear theory that includes forced reconnection as a particular case of Alfvén resonance is presented. We consider a generalized Taylor problem in which a sheared magnetic field is subject to a time-dependent boundary perturbation oscillat
Externí odkaz:
https://doaj.org/article/fc9497c40e494a68bbd2cab93050cffa
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