Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Energy transfer of imbalanced Alfvénic turbulence in the heliosphere

Journal Article · · Nature Communications

Abstract Imbalanced Alfvénic turbulence is a universal process playing a crucial role in energy transfer in space,  astrophysical, and laboratory plasmas. A fundamental and long-lasting question about the imbalanced Alfvénic turbulence is how and through which mechanism the energy transfers between scales. Here, we show that the energy transfer of imbalanced Alfvénic turbulence is completed by coherent interactions between Alfvén waves and co-propagating anomalous fluctuations. These anomalous fluctuations are generated by nonlinear couplings instead of linear reflection. We also reveal that the energy transfer of the waves and the anomalous fluctuations is carried out mainly through local-scale and large-scale nonlinear interactions, respectively, responsible for their bifurcated power-law spectra. This work unveils the energy transfer physics of imbalanced Alfvénic turbulence, and advances the understanding of imbalanced Alfvénic turbulence observed by Parker Solar Probe in the inner heliosphere.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
89233218CNA000001
OSTI ID:
2470551
Journal Information:
Nature Communications, Vol. 14, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (67)

Inertial-Range Spectrum of Hydromagnetic Turbulence journal January 1965
Toward a theory of interstellar turbulence. 2: Strong alfvenic turbulence journal January 1995
Spectrum of Magnetohydrodynamic Turbulence journal March 2006
Imbalanced Strong MHD Turbulence journal January 2007
Imbalanced Weak Magnetohydrodynamic Turbulence journal January 2003
Strong Imbalanced Turbulence journal August 2008
Strong Anisotropic MHD Turbulence with Cross Helicity journal September 2008
Anisotropy of Alfvénic turbulence in the solar wind and numerical simulations: Anisotropy of Alfvénic turbulence journal June 2011
Interaction of Shear-Alfven Wave Packets: Implication for Weak Magnetohydrodynamic Turbulence in Astrophysical Plasmas journal July 1996
A weak turbulence theory for incompressible magnetohydrodynamics journal June 2000
Non-Locality of Hydrodynamic and Magnetohydrodynamic Turbulence journal December 2010
Nonlocal Phenomenology for Anisotropic Magnetohydrodynamic Turbulence journal August 2007
Scale Locality of Magnetohydrodynamic Turbulence journal February 2010
Energy cascade and its locality in compressible magnetohydrodynamic turbulence journal June 2016
MHD structures, waves and turbulence in the solar wind: Observations and theories journal July 1995
The Solar Wind as a Turbulence Laboratory journal January 2013
Highly structured slow solar wind emerging from an equatorial coronal hole journal December 2019
Alfvénic velocity spikes and rotational flows in the near-Sun solar wind journal December 2019
Structure of Stationary Strong Imbalanced Turbulence journal August 2009
The Hydromagnetic Equations journal July 1950
Velocity shear generation of solar wind turbulence journal January 1992
Parametric instability, inverse cascade and the  range of solar-wind turbulence journal January 2018
Fully Developed Anisotropic Hydromagnetic Turbulence in Interplanetary Space journal July 1980
Turbulent Generation of Outward-Traveling Interplanetary Alfvénic Fluctuations journal October 1983
Basic properties of solar wind MHD turbulence near 0.3 AU analyzed by means of Elsässer variables journal January 1989
On the role of interplanetary sources in the evolution of low‐frequency Alfvénic turbulence in the solar wind journal December 1992
The Solar Probe Plus Mission: Humanity’s First Visit to Our Star journal November 2015
The dependence of MHD turbulence spectra on the inner solar wind stream structure near solar minimum journal March 1990
The Evolution and Role of Solar Wind Turbulence in the Inner Heliosphere journal February 2020
Alfvénic versus non-Alfvénic turbulence in the inner heliosphere as observed by Parker Solar Probe journal June 2021
Spectral and spatial evolution of compressible turbulence in the inner solar wind journal January 1990
Dependence of the Outer Density Profiles of Halos on Their mass Accretion rate journal June 2014
Multiscale Pressure-Balanced Structures in Three-dimensional Magnetohydrodynamic Turbulence journal February 2017
Coexistence of Slow-mode and Alfvén-mode Waves and Structures in 3D Compressive MHD Turbulence journal October 2018
Modeling the Solar Wind Turbulent Cascade Including Cross Helicity: With and Without Expansion journal July 2022
Turbulence Transport Modeling and First Orbit Parker Solar Probe (PSP) Observations journal February 2020
The Solar Wind as a Turbulence Laboratory journal January 2005
Multi-Scale Anti-Correlation Between Electron Density and Magnetic Field Strength in the Solar wind journal February 2011
Turbulent cascade of incompressible unidirectional Alfvén waves in the interplanetary medium journal October 1989
Reflection of Alfvén waves in the corona and solar wind: An impulse function approach journal August 2007
Turbulence in the Sub-AlfvÉNic Solar wind Driven by Reflection of Low-Frequency AlfvÉN Waves journal July 2009
Spatio-temporal behavior of magnetohydrodynamic fluctuations with cross-helicity and background magnetic field journal December 2019
Role of Cross-Helicity in Magnetohydrodynamic Turbulence journal January 2009
Imprint of Large-Scale Flows on Turbulence journal December 2005
Spectral Anisotropy in 2D plus Slab Magnetohydrodynamic Turbulence in the Solar Wind and Upper Corona journal September 2020
Critical Balance and the Physics of Magnetohydrodynamic Turbulence journal June 2020
Singular limits of quasilinear hyperbolic systems with large parameters and the incompressible limit of compressible fluids journal July 1981
Low Mach number two-dimensional hydrodynamic turbulence: Energy budgets and density fluctuations in a polytropic fluid journal January 1992
Theory and Transport of Nearly Incompressible Magnetohydrodynamic Turbulence journal January 2017
Anisotropic three-dimensional MHD turbulence journal April 1996
Compressible Sub-Alfvénic MHD Turbulence in Low- β Plasmas journal May 2002
Compressibility in Solar Wind Plasma Turbulence journal May 2005
Frequency-dependent Alfvén-wave Propagation in the Solar Wind: Onset and Suppression of Parametric Decay Instability journal June 2018
Three-dimensional Simulation of the Fast Solar Wind Driven by Compressible Magnetohydrodynamic Turbulence journal July 2019
Full compressible 3D MHD simulation of solar wind journal November 2020
Understanding Uniturbulence: Self-cascade of MHD Waves in the Presence of Inhomogeneities journal September 2019
Three-dimensional Simulations of the Inhomogeneous Low Solar Wind journal January 2021
Nearly incompressible fluids. II: Magnetohydrodynamics, turbulence, and waves journal January 1993
IntroductionThe Cluster mission journal January 2001
Magnetospheric Multiscale Overview and Science Objectives journal May 2015
AME: A Cross-Scale Constellation of CubeSats to Explore Magnetic Reconnection in the Solar–Terrestrial Relation journal April 2020
The Slow-Mode Nature of Compressible wave Power in Solar wind Turbulence journal June 2012
The FIELDS Instrument Suite for Solar Probe Plus: Measuring the Coronal Plasma and Magnetic Field, Plasma Waves and Turbulence, and Radio Signatures of Solar Transients journal March 2016
Solar Wind Electrons Alphas and Protons (SWEAP) Investigation: Design of the Solar Wind and Coronal Plasma Instrument Suite for Solar Probe Plus journal October 2015
An unsplit Godunov method for ideal MHD via constrained transport journal May 2005
Nonlocal interactions in hydrodynamic turbulence at high Reynolds numbers: The slow emergence of scaling laws journal March 2008
Data and programs related to the article "Energy Transfer of Imbalanced Alfvénic Turbulence in the Heliosphere" dataset January 2023