The energy‐based scaling of a thin current sheet: Case study
| Autor: | Sasunov, Yu. L., Khodachenko, M. L., Alexeev, I. I., Belenkaya, E. S., Gordeev, E. I., Kubyshkin, I. V. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Solar Physics
Astrophysics and Astronomy adiabatic invariant Energetic Particles Kinetic and MHD theory Cluster observation Cosmic Rays Research Letters Interplanetary Physics Particle Acceleration Physics::Plasma Physics current sheet Physics::Space Physics Plasma Sheet Research Letter Space Plasma Physics Magnetospheric Physics Space Sciences |
| Zdroj: | Geophysical Research Letters |
| ISSN: | 1944-8007 0094-8276 |
| Popis: | The influence of average plasma energy E~ on the half thickness ℓ of a thin current sheet (TCS) is investigated for three cases of TCSs crossings. The value of ℓ was estimated from the magnetic field data by means of Cluster observations. The obtained scaling values for TCSs, Z~=ℓ/ρT, where ρ T is the thermal Larmor radius, were compared with the scaling Zμ=22E~/T, where E~ and T are the average plasma energy and the temperature of plasma, which assumes a specific dynamics (conservation of magnetic flux through the trajectory segment) of the current carriers. The comparison of Z~ and Z μ shows a good agreement. Key Points The new scaling is presentedThe energy‐based scaling compared with observable thickness of TCSThe population of the TCS‐forming protons results in different scaling |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text