Search: onr:"swepub:oai:DiVA.org:uu-414952" >
Turbulence and Tran...
Turbulence and Transport During Guide Field Reconnection at the Magnetopause
-
- Price, L. (author)
- Univ Maryland, IREAP, College Pk, MD 20742 USA.
-
- Swisdak, M. (author)
- Univ Maryland, IREAP, College Pk, MD 20742 USA.
-
- Drake, J. F. (author)
- Univ Maryland, Dept Phys, Inst Phys Sci & Technol, College Pk, MD 20742 USA.;Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA.
-
show more...
-
- Graham, Daniel B. (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
-
show less...
-
Univ Maryland, IREAP, College Pk, MD 20742 USA Univ Maryland, Dept Phys, Inst Phys Sci & Technol, College Pk, MD 20742 USA.;Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA. (creator_code:org_t)
- American Geophysical Union (AGU), 2020
- 2020
- English.
-
In: Journal of Geophysical Research - Space Physics. - : American Geophysical Union (AGU). - 2169-9380 .- 2169-9402. ; 125:4
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- We analyze the development and influence of turbulence in three-dimensional particle-in-cell simulations of guide field magnetic reconnection at the magnetopause with parameters based on observations from the Magnetospheric Multiscale (MMS) mission. Along the separatrices the turbulence is a variant of the lower-hybrid-drift instability (LHDI) that produces electric field fluctuations with amplitudes much greater than the reconnection electric field. The turbulence controls the scale length of the density and current profiles while enabling significant transport across the magnetopause, despite the electrons remaining frozen-in to the magnetic field. Transport of the out-of-plane current density exceeds that of the particle density. Near the X-line the electrons are not frozen-in and the turbulence, which differs from the LHDI, makes a significant net contribution to the generalized Ohm's law through an anomalous viscosity. The characteristics of the turbulence and associated particle transport are consistent with fluctuation amplitudes in the MMS observations. However, for this event the simulations suggest that the MMS spacecraft were not close enough to the core of the electron diffusion region to identify the region where anomalous viscosity is important.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database