Generation of Realistic Short Chorus Wave Packets

被引：25

作者：

Nunn, D. ^{[1
]}

Zhang, X-J ^{[2
]}

Mourenas, D. ^{[3
,4
]}

Artemyev, A., V ^{[2
]}

机构：

[1] Southampton Univ, Sch Elect & Comp Sci, Southampton, Hants, England

[2] Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA

[3] CEA, DAM, DIF, Arpajon, France

[4] Paris Saclay Univ, CEA, Lab Mat Condit Extremes, Bruyeres Le Chatel, France

来源：

GEOPHYSICAL RESEARCH LETTERS | 2021年 / 48卷 / 07期

基金：

美国国家科学基金会;

关键词：

chorus waves; radiation belts; wave– particle interaction; WHISTLER-MODE CHORUS; MAGNETIC-FIELD; ELECTRON ACCELERATION; INSTABILITY; SIMULATION;

D O I：

10.1029/2020GL092178

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Most lower-band chorus waves observed in the inner magnetosphere propagate under the form of moderately intense short wave packets with fast frequency and phase variations. Therefore, understanding the formation mechanism of such short wave packets is crucial for accurately modeling electron nonlinear acceleration or precipitation into the atmosphere by these waves. We compare chorus wave statistics from the Van Allen Probes with predictions from a simple model of short wave packet generation by wave superposition with resonance nonoverlap, as well as with results from Vlasov Hybrid Simulations of chorus wave generation in an inhomogeneous magnetic field in the presence of one or two simultaneous triggering waves. We show that the observed moderate amplitude short chorus wave packets can be formed by a superposition of two or more waves generated near the magnetic equator with a sufficiently large frequency difference.

引用

页数：10

共 50 条

[21] Short-term evolution of electron wave packets in constant crossed electromagnetic fields with radiative corrections [J].

Kostyukov, I. Yu. ;

Nerush, E. N. ;

Mironov, A. A. ;

Fedotov, A. M. .

PHYSICAL REVIEW D, 2023, 108 (09)

[22] On the latitudinal extent of chorus emissions as observed by the Polar Plasma Wave Instrument [J].

Bunch, N. L. ;

Spasojevic, M. ;

Shprits, Y. Y. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2011, 116

[23] Optimal wave packets in a boundary layer and initial phases of a turbulent spot [J].

Cherubini, S. ;

Robinet, J. -C. ;

Bottaro, A. ;

De Palma, P. .

JOURNAL OF FLUID MECHANICS, 2010, 656 :231-259

[24] A STUDY OF THE REDUCTION OF WAVE-PACKETS BY SIMULATION [J].

MURAYAMA, Y .

FOUNDATIONS OF PHYSICS LETTERS, 1990, 3 (02) :103-127

[25] Wigner wave packets: Transmission, reflection, and tunneling [J].

Jensen, Kevin L. ;

Lebowitz, Joel L. ;

Riga, Jeanne M. ;

Shiffler, Donald A. ;

Seviour, Rebecca .

PHYSICAL REVIEW B, 2021, 103 (15)

[26] Propagation and Damping of Nonlinear Plasma Wave Packets [J].

Fahlen, J. E. ;

Winjum, B. J. ;

Grismayer, T. ;

Mori, W. B. .

PHYSICAL REVIEW LETTERS, 2009, 102 (24)

[27] Modulated Wave Packets in DNA and Impact of Viscosity [J].

Tabi, Conrad Bertrand ;

Mohamadou, Alidou ;

Kofane, Timoleon Crepin .

CHINESE PHYSICS LETTERS, 2009, 26 (06)

[28] Modulated wave packets in pulsar magnetospheric plasma [J].

Bains, A. S. ;

Gill, T. S. ;

Bedi, C. .

23RD NATIONAL SYMPOSIUM ON PLASMA SCIENCE AND TECHNOLOGY (PLASMA-2008), 2010, 208

[29] Applying the cold plasma dispersion relation to whistler mode chorus waves: EMFISIS wave measurements from the Van Allen Probes [J].

Hartley, D. P. ;

Chen, Y. ;

Kletzing, C. A. ;

Denton, M. H. ;

Kurth, W. S. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2015, 120 (02) :1144-1152

[30] Chorus waves and spacecraft potential fluctuations: Evidence for wave-enhanced photoelectron escape [J].

Malaspina, D. M. ;

Ergun, R. E. ;

Sturner, A. ;

Wygant, J. R. ;

Bonnell, J. W. ;

Breneman, A. ;

Kersten, K. .

GEOPHYSICAL RESEARCH LETTERS, 2014, 41 (02) :236-243

← 1 2 3 4 5 →