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Updated: Sep 24, 2025
08:10
Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas
Published on: May 25, 2021
4.5K
Spontaneous magnetization of collisionless plasma.
Muni Zhou1, Vladimir Zhdankin2,3, Matthew W Kunz3,4
1Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, MA 02139.
Summary
Cosmic magnetic fields originate from generic plasma turbulence, not just astrophysical processes. This study explains the spontaneous generation of these initial magnetic fields, advancing our understanding of cosmic magnetogenesis.
Area of Science:
- Astrophysics
- Plasma Physics
- Cosmology
Background:
- Dynamically significant magnetic fields are observed throughout the Universe.
- The origin of these cosmic magnetic fields remains a fundamental unsolved problem in astrophysics.
Purpose of the Study:
- To provide a new theoretical framework for understanding the origin of cosmic magnetism.
- To investigate the role of plasma microphysics in the generation of magnetic fields.
Main Methods:
- Utilizing kinetic plasma physics to analyze astrophysical turbulence.
- Developing theoretical models and performing numerical simulations.
Main Results:
- Demonstrating the spontaneous generation of initial magnetic fields by astrophysical turbulence.
- Showing that cosmic plasmas can become ubiquitously magnetized through these processes.
Conclusions:
- This work presents a paradigm for cosmic magnetogenesis, explaining the origin of primordial magnetic fields.
- The findings lay the groundwork for understanding how these seed fields are amplified by turbulent dynamos.
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