Final Technical Report ''Double discontinuities in space plasma''
Abstract
This research used high-resolution magnetic field data to examine the interior structures of MHD shocks in interplanetary space and in the magnetotail; we discovered that a slow-mode shock is often followed by an adjoining rotational discontinuity layer on the postshock side. The thickness of each layer is of the order of a few ion inertial lengths. Such a compound structure is known as a double discontinuity. When the magnetic field rotates by several degrees per ion inertial length inside a thin layer, the Hall current term becomes important in the generalized Ohm's law. Steady state solutions based on the Hall-MHD theory have been obtained to show the merging of a rotational layer and a slow shock layer to form a compound structure like the observed double discontinuities.
- Authors:
- Publication Date:
- Research Org.:
- Catholic University of America (US)
- Sponsoring Org.:
- USDOE Office of Science (SC) (US)
- OSTI Identifier:
- 823765
- Report Number(s):
- DOE/ER/54582-1
TRN: US0402486
- DOE Contract Number:
- FG02-00ER54582
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: 13 May 2004
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; INTERPLANETARY SPACE; MAGNETIC FIELDS; MAGNETOTAIL; PLASMA; THICKNESS; HIGH-RESOLUTION MAGNETIC FIELD DATA; MHD SHOCKS; DOUBLE DISCONTINUITY; HALL-MHD THEORY
Citation Formats
Whang, Yun Chow. Final Technical Report ''Double discontinuities in space plasma''. United States: N. p., 2004.
Web. doi:10.2172/823765.
Whang, Yun Chow. Final Technical Report ''Double discontinuities in space plasma''. United States. https://doi.org/10.2172/823765
Whang, Yun Chow. 2004.
"Final Technical Report ''Double discontinuities in space plasma''". United States. https://doi.org/10.2172/823765. https://www.osti.gov/servlets/purl/823765.
@article{osti_823765,
title = {Final Technical Report ''Double discontinuities in space plasma''},
author = {Whang, Yun Chow},
abstractNote = {This research used high-resolution magnetic field data to examine the interior structures of MHD shocks in interplanetary space and in the magnetotail; we discovered that a slow-mode shock is often followed by an adjoining rotational discontinuity layer on the postshock side. The thickness of each layer is of the order of a few ion inertial lengths. Such a compound structure is known as a double discontinuity. When the magnetic field rotates by several degrees per ion inertial length inside a thin layer, the Hall current term becomes important in the generalized Ohm's law. Steady state solutions based on the Hall-MHD theory have been obtained to show the merging of a rotational layer and a slow shock layer to form a compound structure like the observed double discontinuities.},
doi = {10.2172/823765},
url = {https://www.osti.gov/biblio/823765},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu May 13 00:00:00 EDT 2004},
month = {Thu May 13 00:00:00 EDT 2004}
}