Turbulence in the outer heliosphere
arXiv:2207.14115 · doi:10.1007/s11214-022-00914-2
Abstract
The solar wind (SW) and local interstellar medium (LISM) are turbulent media. Their interaction is governed by complex physical processes and creates heliospheric regions with significantly different properties in terms of particle populations, bulk flow and turbulence. Our knowledge of the solar wind turbulence \nature and dynamics mostly relies on near-Earth and near-Sun observations, and has been increasingly improving in recent years due to the availability of a wealth of space missions, including multi-spacecraft missions. In contrast, the properties of turbulence in the outer heliosphere are still not completely understood. In situ observations by Voyager and New Horizons, and remote neutral atom measurements by IBEX strongly suggest that turbulence is one of the critical processes acting at the heliospheric interface. It is intimately connected to charge exchange processes responsible for the production of suprathermal ions and energetic neutral atoms. This paper reviews the observational evidence of turbulence in the distant SW and in the LISM, advances in modeling efforts, and open challenges.
82 pages, 31 figures. Paper accepted by Space Science Reviews (collection: The Heliosphere in the Local Interstellar Medium: Into the Unknown), and presented at the ISSI Workshop on November 8-12, 2021
References in corpus (34)
- Observation of inertial energy cascade in interplanetary space plasma
- Small Scale Energy Cascade of the Solar Wind Turbulence
- Recent progress in astrophysical plasma turbulence from solar wind observations
- 3D Turbulent Reconnection: Theory, Tests and Astrophysical Implications
- Solar wind turbulent spectrum at plasma kinetic scales
- Nature of Kinetic Scale Turbulence in the Earth's Magnetosheath
- Ion Scale Electromagnetic Waves in the Inner Heliosphere
- A model of acceleration of Anomalous Cosmic Rays by Reconnection in the Heliosheath
- On the von Karman-Howarth equations for Hall MHD flows
- Energy Cascade Rate In Compressible Fast And Slow Solar Wind Turbulence
- Turbulence-driven ion beams in the magnetospheric Kelvin-Helmholtz instability
- Three-dimensional Features of the Outer Heliosphere Due to Coupling between the Interstellar and Heliospheric Magnetic Field. V. The Bow Wave, Heliospheric Boundary Layer, Instabilities, and Magnetic Reconnection
- Identification of Magnetic Flux Ropes from Parker Solar Probe Observations during the First Encounter
- On the 1/f spectrum in the solar wind and its connection with magnetic compressibility
- Energy transfer in compressible magnetohydrodynamic turbulence
- Critical Balance and the Physics of MHD Turbulence
- Turbulent General Magnetic Reconnection
- Spatial Confinement of the IBEX Ribbon: A Dominant Turbulence Mechanism
- A generalized two-component model of solar wind turbulence and ab initio diffusion mean free paths and drift lengthscales of cosmic rays
- Kolmogorov versus Iroshnikov-Kraichnan spectra: Consequences for ion heating in the solar wind
- Magnetic turbulence spectra and intermittency in the heliosheath and in the local interstellar medium
- Modeling Shocks Detected by Voyager 1 in the Local Interstellar Medium
- Intermittency in the Expanding Solar Wind: Observations from Parker Solar Probe (0.16au), Helios 1 (0.3-1au), and Voyager 1 (1-10au)
- Implementing turbulence transport in the CRONOS framework and application to the propagation of CMEs
- Modeling the Solar Wind at the Ulysses, Voyager, and New Horizons Spacecraft
- MHD Turbulence, Turbulent Dynamo and Applications
- Electron thermal conduction as a possible mechanism to make the inner heliosheath thnner
- Galactic Cosmic-Ray Anisotropies: Voyager 1 in the Local Interstellar Medium
- Pickup Ion Effect of the Solar Wind Interaction with the Local Interstellar Medium
- The formation of magnetic depletions and flux annihilation due to reconnection in the heliosheath
- On the Generation of Compressible Mirror-mode Fluctuations in the Inner Heliosheath
- Weak line discovered by Voyager 1 in the interstellar medium: Quasi-thermal noise produced by very few fast electrons
- PIC simulation of a shock tube: Implications for wave transmission in the heliospheric boundary region
- The structure of magnetic turbulence in the heliosheath region observed by Voyager 2 at 106 AU