Coronal Heating Topology: The Interplay of Current Sheets and Magnetic Field Lines
- 1. Department of Earth, Planetary, and Space Sciences, UCLA, Los Angeles, CA 90095 (United States)
- 2. Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark, DE 19716 (United States)
- 3. Department of Physics, Faculty of Science, Mahidol University, Bangkok 10400 (Thailand)
- 4. Dipartimento di Fisica, Università della Calabria, Cosenza I-87036 (Italy)
Description
The magnetic topology and field line random walk (FLRW) properties of a nanoflare-heated and magnetically confined corona are investigated in the reduced magnetohydrodynamic regime. Field lines originating from current sheets form coherent structures, called current sheet connected (CSC) regions, which extend around them. CSC FLRW is strongly anisotropic, with preferential diffusion along the current sheets' in-plane length. CSC FLRW properties remain similar to those of the entire ensemble but exhibit enhanced mean square displacements and separations due to the stronger magnetic field intensities in CSC regions. The implications for particle acceleration and heat transport in the solar corona and wind, and for solar moss formation are discussed.
Availability note (English)
Available from http://dx.doi.org/10.3847/1538-4357/aa79f2Additional details
Identifiers
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 844
- Journal Issue
- 1
- Journal Page Range
- [8 p.]
- ISSN
- 0004-637X
- CODEN
- ASJOAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 49008831
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ACCELERATION; ANISOTROPY; HEAT TRANSFER; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; RANDOMNESS; SOLAR CORONA; SOLAR WIND; SUN; TOPOLOGY; TURBULENCE
- Descriptors DEC
- ATMOSPHERES; ENERGY TRANSFER; FLUID MECHANICS; HYDRODYNAMICS; MAIN SEQUENCE STARS; MATHEMATICS; MECHANICS; SOLAR ACTIVITY; SOLAR ATMOSPHERE; STARS; STELLAR ACTIVITY; STELLAR ATMOSPHERES; STELLAR CORONAE; STELLAR WINDS