Nonlinear ion-acoustic waves at Venus ionosphere

被引：17

作者：

Sayed, F. S. H. ^{[1
]}

Turky, A. A. ^{[1
]}

Koramy, R. A. ^{[1
]}

Moslem, W. M. ^{[2
,3
]}

机构：

[1] Assiut Univ, Fac Sci, Dept Phys, Asyut 71516, Egypt

[2] Port Said Univ, Fac Sci, Dept Phys, Port Said 42521, Egypt

[3] British Univ Egypt, Ctr Theoret Phys, Cairo, Egypt

来源：

ADVANCES IN SPACE RESEARCH | 2020年 / 66卷 / 06期

关键词：

Ion-acoustic waves; Venus ionosphere; Solitons; Sagdeev pseudo-potential; Mach number; SOLAR-WIND INTERACTION; SOLITARY WAVES; PLASMA; SOLITONS; PROPAGATION; DYNAMICS;

D O I：

10.1016/j.asr.2020.06.023

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

High altitude Venus ionosphere is characterized by the presence of H+ and O+ ions as well as electrons. Because of these two positive ions, the ion-acoustic wave (IAW) was observed. Propagation properties of nonlinear IAWs in the Venusian ionosphere are investigated. Korteweg de-Vries (KdV) equation is derived for weakly nonlinear behavior of the IAWs, while Sagdeev pseudo-potential is obtained to study an arbitrary amplitude IAWs. The region for the lower and upper limits of Mach number for the existence of soliton structures are determined. The physical parameters, such as density and temperature ratios, are investigated on the profiles of both weakly and fully nonlinear waves. Furthermore, subsonic waves can exist in the lower ionosphere whereas supersonic waves propagate at higher altitude. This is in good agreement with the observations. (C) 2020 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：1276 / 1285

页数：10

共 35 条

[1] Ion-acoustic solitons in a magnetized plasma with nonthermal electrons
Cairns, RA
Mamun, AA
Bingham, R
Shukla, PK
[J]. PHYSICA SCRIPTA, 1996, T63 : 80 - 86
[2] Chen F F, 2016, INTRO PLASMA PHYS CO
[3] The Pioneer Venus Program
Colin, Lawrence
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1980, 85 (A13) : 7575 - 7598
[4] Cravens TE, 1997, SPACE SCI S, P61
[5] DAUXOIS T, 2005, PHYS SOLITONS
[6] Head-on collision of ion-acoustic solitary waves in multicomponent plasmas with positrons
El-Shamy, E. F.
Sabry, R.
Moslem, W. M.
Shukla, P. K.
[J]. PHYSICS OF PLASMAS, 2010, 17 (08)
[7] Weakly relativistic effect on the modulation of nonlinear ion-acoustic waves in a warm plasma
ElLabany, SK
[J]. JOURNAL OF PLASMA PHYSICS, 1995, 54 : 295 - 308
[8] Solar Wind Interaction and Impact on the Venus Atmosphere
Futaana, Yoshifumi
Wieser, Gabriella Stenberg
Barabash, Stas
Luhmann, Janet G.
[J]. SPACE SCIENCE REVIEWS, 2017, 212 (3-4) : 1453 - 1509
[9] Head-on collision of ion-acoustic solitary waves in a weakly relativistic electron-positron-ion plasma
Han, Jiu-Ning
Yang, Xiao-Xia
Tian, Duo-Xiang
Duan, Wen-Shan
[J]. PHYSICS LETTERS A, 2008, 372 (27-28) : 4817 - 4821
[10] CONTROL OF VLF BURST ACTIVITY IN THE NIGHTSIDE IONOSPHERE OF VENUS BY THE MAGNETIC-FIELD ORIENTATION
HO, CM
STRANGEWAY, RJ
RUSSELL, CT
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 1992, 97 (E7) : 11673 - 11680

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