Abstract Details
| status: | file name: | submitted: | by: |
|---|---|---|---|
| approved | alternator_involving_reconnected_magnetic_field.pdf | 2022-03-04 10:06:18 | Bruno Coppi |
Abstracts
Author: Bamandas Basu
Requested Type: Poster
Submitted: 2022-03-03 09:31:32
Co-authors: B. Coppi
Contact Info:
MIT
77 Massachusetts Ave.
Cambridge, MA 02139
United States
Abstract Text:
The generation of magnetic field structures over macroscopic scale distances is an issue of well-recognized importance in astrophysics and for laboratory experiments. A relevant process is identified [1] involving a plasma, imbedded in a pre-existing sheared magnetic structure, with a significant gradient of the longitudinal (to the stationary component of the magnetic field) electron temperature. A periodic emergence of a reconnected magnetic structure is the basic feature of this process that is likened to an "alternator". The oscillations amplitude can be amplified in the presence of a density gradient (aligned with the electron temperature gradient) and a non-negligible particle diffusion. Regimes where the longitudinal electron thermal conductivities are large relative to the associated transverse conductivities are considered, a two-fluid description being adopted as a start. The introduced process differs substantially from the stationary Biermann Battery concept that depends on misaligned.
Sponsored in part by the Kavli Foundation (MKI) and by CNR (Italy).
[1] B. Coppi and B. Basu, Phys. Lett. A 397, 127265 (2021).
Comments: