模拟研究了由能量离子驱动的较低混合波的波结构
Tsubasa Kotani1, Mieko Toida2, Toseo Moritaka2
1Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
Physical review. E
|October 18, 2023
概括
能量离子通过非线性波-波合产生波低混合波 (LHWs). 即使在能量离子被移除后,这些波LHW仍然存在,与大量离子伯恩斯坦波相互作用.
科学领域:
- 血物理学的等离子体物理学
- 太空物理空间物理学
- 计算物理学的计算物理.
背景情况:
- 低混合波 (LHW) 在空间等离子体现象中至关重要.
- 能量离子可以显著影响等离子体中的波动力学.
- 了解波浪的产生和传播是解释太空观测的关键.
研究的目的:
- 研究由能量离子驱动的LHW的波结构.
- 探索这些波LHWs的生成机制.
- 将模拟结果与地球磁层的观测结果进行比较.
主要方法:
- 一维,电磁,粒子在细胞中的模拟.
- 包括能量离子注射效应.
- 分析波数和频谱的分析.
主要成果:
- 波LHW是在基本波数和频率的倍数 (m,n) 时生成的.
- 波LHW远远超出了低混合共振频率 (m,n ~ 10) 的范围.
- 在LHWs和能量离子循环电子波之间的非线性波-波合会产生波.
- 波LHW可以由于与大量离子伯恩斯坦波的合而持续存在.
结论:
- 能量离子在激发和的LHW中起着关键作用.
- 非线性波-波合是波生成的主要机制.
- 波LHW的持久性对理解宇宙环境中的等离子体流和能量转移有影响.
更多相关视频
相关概念视频
Resonance and Hybrid Structures
17.0K
According to the theory of resonance, if two or more Lewis structures with the same arrangement of atoms can be written for a molecule, ion, or radical, the actual distribution of electrons is an average of that shown by the various Lewis structures.
Resonance Structures and Resonance Hybrids
The Lewis structure of a nitrite anion (NO2−) may actually be drawn in two different ways, distinguished by the locations of the N–O and N=O bonds.
Resonance Structures and Resonance Hybrids
The Lewis structure of a nitrite anion (NO2−) may actually be drawn in two different ways, distinguished by the locations of the N–O and N=O bonds.
17.0K
Hybridization of Atomic Orbitals I
47.2K
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
47.2K
Modes of Standing Waves - I
2.9K
A close look at earthquakes provides evidence for the conditions appropriate for resonance, standing waves, and constructive and destructive interference. A building may vibrate for several seconds with a driving frequency matching the building's natural frequency of vibration; this produces a resonance that results in one building collapsing while the neighboring buildings do not. Often, buildings of a certain height are devastated, while other taller buildings remain intact. This...
2.9K
Hybridization of Atomic Orbitals II
32.3K
sp3d and sp3d 2 Hybridization
32.3K
Generating Electromagnetic Radiations
3.0K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
3.0K
Energy in Simple Harmonic Motion
9.0K
To determine the energy of a simple harmonic oscillator, consider all the forms of energy it can have during its simple harmonic motion. According to Hooke's Law, the energy stored during the compression/stretching of a string in a simple harmonic oscillator is potential energy. As the simple harmonic oscillator has no dissipative forces, it also possesses kinetic energy. In the presence of conservative forces, both energies can interconvert during oscillation, but the total energy remains...
9.0K


