Bidirectional Energy Cascades and the Origin of Kinetic Alfvénic and Whistler Turbulence in the Solar Wind
| dc.contributor.author | Che, H. | |
| dc.contributor.author | Goldstein, Melvyn | |
| dc.contributor.author | Viñas, A. F. | |
| dc.date.accessioned | 2024-01-17T11:28:26Z | |
| dc.date.available | 2024-01-17T11:28:26Z | |
| dc.date.issued | 2014-02-11 | |
| dc.description | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | |
| dc.description.abstract | The observed steep kinetic scale turbulence spectrum in the solar wind raises the question of how that turbulence originates. Observations of keV energetic electrons during solar quiet time suggest them as a possible source of free energy to drive kinetic turbulence. Using particle-in-cell simulations, we explore how the free energy released by an electron two-stream instability drives Weibel-like electromagnetic waves that excite wave-wave interactions. Consequently, both kinetic Alfvénic and whistler turbulence are excited that evolve through inverse and forward magnetic energy cascades. | |
| dc.description.sponsorship | This research was supported by the NASA Postdoctoral Program at NASA/GSFC administered by Oak Ridge Associated Universities through a contract with NASA and NASA Grant No. NNH11ZDA001N. The simulations and analysis were carried out at the NASA Advanced Supercomputing (NAS) facility at the NASA Ames Research Center, and on Kraken at the National Institute for Computation Sciences. The authors thank the anonymous referees whose comments have helped in making many improvements to this manuscript. H. C. is grateful for helpful discussions at the “7th Festival de Théorie” held in Aix-en-Provence, France. | |
| dc.description.uri | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.061101 | |
| dc.format.extent | 5 pages | |
| dc.genre | journal articles | |
| dc.identifier.citation | Che, H., M. L. Goldstein, and A. F. Viñas. “Bidirectional Energy Cascades and the Origin of Kinetic Alfv\’enic and Whistler Turbulence in the Solar Wind.” Physical Review Letters 112, no. 6 (February 11, 2014): 061101. https://doi.org/10.1103/PhysRevLett.112.061101. | |
| dc.identifier.uri | https://doi.org/10.1103/PhysRevLett.112.061101 | |
| dc.identifier.uri | http://hdl.handle.net/11603/31300 | |
| dc.language.iso | en_US | |
| dc.publisher | APS | |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Goddard Planetary Heliophysics Institute (GPHI) | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | Public Domain Mark 1.0 | en |
| dc.rights.uri | https://creativecommons.org/publicdomain/mark/1.0/ | |
| dc.title | Bidirectional Energy Cascades and the Origin of Kinetic Alfvénic and Whistler Turbulence in the Solar Wind | |
| dc.type | Text | |
| dcterms.creator | https://orcid.org/0000-0002-5317-988X |