2024 Fast magnetosonic wave

Fast magnetosonic wave

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August undefined, 2024

WebAug 6, 2024 · Now on Wikipedia, the fast magnetosonic speed is given as ω k = c ( V a 2 + c s 2) V a 2 + c 2 which is not the same, and on a lot of papers I see the result: ω k = c ( σ ( 1 + β s 2) + β s 2 ( 1 + β s 2) ( 1 + σ) where they also suppose θ = 90 and is actually the desirable result. What am I doing wrong? Edit: V a = B o 4 π ρ = Alfven Speed WebJan 17, 2024 · "Fast magnetosonic waves" (MSWs) are one kind of electromagnetic plasma wave in the geospace. MSWs result from hot protons and are considered "high frequency waves."

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WebSep 21, 2015 · The results show that the unstable waves are essentially ion Bernstein waves; however, when the shell proton concentration becomes sufficiently small (less than 10), the unstable waves approach the cold plasma dispersion relation for fast magnetosonic waves and become fast magnetosonic-like. WebApr 12, 2024 · Joint inversion of the S1222a Rayleigh- and Love-wave group velocities provides 1D isotropic velocity models of the regional Martian crust. ... Linear kinetic dispersion relation indicates lower phase speeds and a broader range of group speeds for fast magnetosonic (MS) waves. lillian hickey pfizer

Global Survey and Empirical Model of Fast Magnetosonic Waves Over Their ...

WebMay 21, 2024 · Not all fast magnetosonic wave events, however, adhere to the theoretical prediction; for some events, waves exhibit discrete spectral peaks but with a frequency spacing different from the local proton cyclotron frequency (e.g., Santolík et al., 2016), and for other events, the discrete spectral structure is washed out (e.g., Posch et al ... WebThe theory of fast magnetosonic wave propagation was extended to include the effects of density gradients, plasma current, and impurity ion species. The damping of the fast … Web段中华，全小龙，乔有明*，裴海昆，何桂芳 (1.青海大学生态环境工程学院，青海西宁 810016；2.三江源生态和高原农牧业国家重点实验室，青海西宁 810016；3.青海大学分析测试中心，青海西宁 810016) hotels in lutherville timonium md

Geophysical Research Letters: Vol 50, No 8

Scattering of Radiation Belt Electrons by Fast Magnetosonic Waves ...

WebMar 7, 2024 · Although commonly observed in the inner magnetosphere, fast magnetosonic (MS) waves are often owe to be excited by those proton rings resulting from the so-called energy-dependent drift path of ring current protons. In this letter, we report an interesting MS wave event in a dipolarizing flux bundle (DFB) observed by the Van Allen … WebFeb 3, 2024 · We report a detailed observational study of two quasi-periodic fast-propagating (QFP) magnetosonic wave events that occurred on 2011 March 9 and 10, respectively. Interestingly, both the events have two wave trains (WTs): a strong main one (WT-1) and a small and weak secondary one (WT-2). lillian heplerWebDec 16, 2024 · Previous studies demonstrated that frequency harmonic structures of fast magnetosonic (MS) waves are usually excited by the hot proton instability. Here, we present an unusual event of MS waves with more than six harmonics wavebands ( n = 1–6) in which their high harmonic bands are highly phase-coupled with their fundamental … hotels in luton town centre

"WebDec 15, 2024 · Our survey provides empirical models of magnetosonic waves in the inner magnetosphere, which are useful in future radiation belt modeling. 1 Introduction Fast magnetosonic waves are highly oblique electromagnetic emissions commonly observed near the equator in the Earth's magnetosphere (Laakso et al., 1990; Russell & Holzer, … " - Fast magnetosonic wave

Fast magnetosonic wave

Web2 days ago · Nonresonant interactions between fast magnetosonic waves and magnetospheric particles have obtained more and more attention. Through such nonresonant interactions, magnetosonic waves can lead to ... WebNov 16, 2014 · Some of these wave events have been suggested to be driven by linear mode conversion (MC) of the fast magnetosonic waves at the ion-ion hybrid (IIH) resonances. Since the resonant IIH frequency is ...

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WebOct 14, 2024 · Fast magnetosonic (MS) waves, also named equatorial noise, is one of the universal magnetospheric waves, and the others include whistle mode chorus waves, hiss, and electromagnetic ion cyclotron (EMIC) waves. Different from the other waves, MS wave shows the unique properties of linear ellipiticity and quasi-perpendicular propagation. WebModulational instability of the coupled waves between fast magnetosonic wave and slow Alfvén wave in the laser－plasma interaction. Plasma Science and Technology(2024年1期) 2024-03-01.

WebApr 12, 2024 · When assessing the scattering of radiation belt electrons by fast magnetosonic (MS) waves, it is traditionally assumed that the waves follow the … WebApr 1, 2024 · The nonlinear development of the pump wave intensity profile in the z-x plane is illustrated in Fig. 1 (a-c) for the different values of propagation angle, θ = 90 0, 80 0 a n …

WebNov 20, 2014 · One of the leading models for electron acceleration in solar flares is stochastic acceleration by weakly turbulent fast magnetosonic waves ({sup f}ast waves{sup )}. In this model, large-scale flows triggered by magnetic reconnection excite large-wavelength fast waves, and fast-wave energy then cascades from large … WebThe standing fast magnetosonic waves cause a periodical variation in the Alfvén speed, with the amplitude of an Alfvén wave being governed by Mathieu’s equation. Consequently, sub-harmonics of Alfvén waves with a frequency half that of magnetosonic waves grow exponentially in time. It is suggested that the energy of nonelectromagnetic ...

WebInvestigation of the fast magnetosonic wave excited by the Alfvén wave phase mixing by using the Hall-MHD model in inhomogeneous plasma. Plasma Science and Technology(2024年3期) 2024-03-22. 一种新型微球聚焦测量极板设计及应用* 石油管材与仪器(2024年5期) 2024-11-05.

WebThe Earth’s bow shock is generated by the interaction of the solar wind with the Earth’s magnetosphere (e.g.,Eastwood et al.2005;Yang et al.2016;Lu et al.2024).Upstream of the bow shock,there exists a region known as the foreshock,filled with incident solar wind particles and particles reflected by the bow shock(e.g.,Eastwood et al.2005).In ... hotels in luton cheapWebFeb 3, 2024 · We report a detailed observational study of two quasi-periodic fast-propagating (QFP) magnetosonic wave events that occurred on 2011 March 9 and 10, … hotels in lycomingWebAug 1, 1994 · @article{osti_6709945, title = {Plasma heating by fast magnetosonic waves in Tokamaks}, author = {Porkolab, M}, abstractNote = {This approach is compared with … hotels in luton with balconyWebIn this context, it clear that this database's "magnetosonic speed" is actually the magnetosonic speed for the fast-mode wave for the case of magnetic field vector normal to the solar wind flow vector. Users may compute "true" magnetosonic speed from the parameters contained in the data records of this database. JHK, 6/2/2005 hotels in lutz floridaWebApr 12, 2024 · When assessing the scattering of radiation belt electrons by fast magnetosonic (MS) waves, it is traditionally assumed that the waves follow the MS/whistler branch of the cold plasma dispersion relation (CPDR) in magnetohydrodynamics. However, MS waves are essentially ion Bernstein modes … lillian hickeyWebNov 6, 2024 · The intensity of magnetosonic (MS) waves in the dawnside magnetosphere is highly variable during the change in solar wind dynamic pressure The magnetospheric compression produces proton ring distributions and thus causes the amplification of MS waves on the dawn side lillian hickmanWebJan 11, 2024 · The fluctuating magnetic field observed exhibits a series of spectral peaks at harmonics of the proton cyclotron frequency Ω p and has a dominant compressional component, which can be classified as fast magnetosonic waves. lillian henny attorney houston