Global hybrid simulation of the solar wind interaction with the dayside of Venus

1991 ◽  
Vol 96 (A5) ◽  
pp. 7779 ◽  
Author(s):  
K. R. Moore ◽  
V. A. Thomas ◽  
D. J. McComas
Keyword(s):  
Solar Wind ◽  
Hybrid Simulation ◽  
Solar Wind Interaction

Modulation of the solar wind driven ion escape from unmagnetized planets by ultra-low-frequency foreshock waves in a global hybrid simulation

2020 ◽  
Author(s):  
Riku Jarvinen ◽  
Esa Kallio ◽  
Tuija Pulkkinen
Keyword(s):  
Solar Wind ◽  
Large Scale ◽  
Low Frequency ◽  
Hybrid Simulation ◽  
Bow Shock ◽  
Upstream Region ◽  
Ulf Waves ◽  
Solar Wind Interaction ◽  
Ion Escape ◽  
A Charge

<p>We study the solar wind interaction with Venus in a 3-dimensional global hybrid model where ions are treated as particles and electrons are a charge-neutralizing fluid. We concentrate on large-scale ultra-low frequency (ULF) waves in the ion foreshock and how they affect the energization and escape of planetary ions. The ion foreshock forms in the upstream region ahead of the quasi-parallel bow shock, where the angle between the shock normal and the magnetic field is smaller than about 45 degrees. The magnetic connection with the bow shock allows backstreaming of the solar wind ions leading to the formation of the ion foreshock. This kind of beam-plasma configuration is a source of free energy for the excitation of plasma waves. The foreshock ULF waves convect downstream with the solar wind flow and encounter the bow shock and transmit in the downstream region. We analyze the coupling of the ULF waves with the planetary ion acceleration and compare Venus and Mars in a global hybrid simulation.</p>

Ultra-low frequency foreshock waves at Venus and Mercury in a global hybrid simulation

2020 ◽  
Author(s):  
Riku Jarvinen ◽  
Esa Kallio ◽  
Tuija I. Pulkkinen
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Large Scale ◽  
Low Frequency ◽  
Hybrid Simulation ◽  
Bow Shock ◽  
Upstream Region ◽  
Ulf Waves ◽  
Solar Wind Interaction ◽  
Low Frequency Waves

<p>We study the solar wind interaction with Venus and Mercury in a 3-dimensional global hybrid simulation where ions are treated as particles and electrons are a charge-neutralizing fluid. We concentrate on the formation of large-scale ultra-low frequency (ULF) waves in ion foreshocks and their dependence on the solar wind and interplanetary magnetic field conditions. The ion foreshock forms in the upstream region ahead of the quasi-parallel bow shock, where the angle between the shock normal and the magnetic field is smaller than about 45 degrees. The magnetic connection with the bow shock allows backstreaming of the solar wind ions leading to the formation of the ion foreshock. This kind of beam-plasma configuration is a source of free energy for the excitation of plasma waves. The foreshock ULF waves convect downstream with the solar wind flow and encounter the bow shock. We compare the waves between Venus and Mercury, and analyze the coupling of the ULF waves with the planetary ion acceleration at Venus.</p> <p>References:</p> <p>Jarvinen R., Alho M., Kallio E., Pulkkinen T.I., 2020, Oxygen Ion Escape From Venus Is Modulated by Ultra-Low Frequency Waves, Geophys. Res. Lett., 47, 11, doi:10.1029/2020GL087462</p> <p>Jarvinen R., Alho M., Kallio E., Pulkkinen T.I., 2020, Ultra-low frequency waves in the ion foreshock of Mercury: A global hybrid modeling study, Mon. Notices Royal Astron. Soc., 491, 3, 4147-4161, doi:10.1093/mnras/stz3257</p>

Mercury’s magnetosphere–solar wind interaction for northward and southward interplanetary magnetic field: Hybrid simulation results

Icarus ◽  
2010 ◽  
Vol 209 (1) ◽  
pp. 11-22 ◽  
Author(s):  
Pavel M. Trávníček ◽  
David Schriver ◽  
Petr Hellinger ◽  
David Herčík ◽  
Brian J. Anderson ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Interplanetary Magnetic Field ◽  
Hybrid Simulation ◽  
Solar Wind Interaction ◽  
Simulation Results

scholarly journals Oxygen ion escape from Venus in a global hybrid simulation: role of the ionospheric O<sup>+</sup> ions

2009 ◽  
Vol 27 (11) ◽  
pp. 4333-4348 ◽  
Author(s):  
R. Jarvinen ◽  
E. Kallio ◽  
P. Janhunen ◽  
S. Barabash ◽  
T. L. Zhang ◽  
...  
Keyword(s):  
Solar Wind ◽  
Hybrid Simulation ◽  
Solar Wind Interaction ◽  
Simulation Code ◽  
Oxygen Ion ◽  
Ion Escape ◽  
Global Configuration ◽  
Best Fit ◽  
The Magnetic Field

Abstract. We study the solar wind induced oxygen ion escape from Venus' upper atmosphere and the Venus Express observations of the Venus-solar wind interaction by the HYB-Venus hybrid simulation code. We compare the simulation to the magnetic field and ion observations during an orbit of nominal upstream conditions. Further, we study the response of the induced magnetosphere to the emission of planetary ions. The hybrid simulation is found to be able to reproduce the main observed regions of the Venusian plasma environment: the bow shock (both perpendicular and parallel regions), the magnetic barrier, the central tail current sheet, the magnetic tail lobes, the magnetosheath and the planetary wake. The simulation is found to best fit the observations when the planetary \\oxy~escape rate is in the range from 3×1024 s−1 to 1.5×1025 s−1. This range was also found to be a limit for a test particle-like behaviour of the planetary ions: the higher escape rates manifest themselves in a different global configuration of the Venusian induced magnetosphere.

The solar wind interaction with Venus through the eyes of the Pioneer Venus Orbiter

2006 ◽  
Vol 54 (13-14) ◽  
pp. 1482-1495 ◽  
Author(s):  
C.T. Russell ◽  
J.G. Luhmann ◽  
R.J. Strangeway
Keyword(s):  
Solar Wind ◽  
Solar Wind Interaction

Solar wind interaction with the Earth's magnetic field: 1. Magnetosheath

1973 ◽  
Vol 78 (19) ◽  
pp. 3714-3730 ◽  
Author(s):  
V. Formisano ◽  
G. Moreno ◽  
F. Palmiotto ◽  
P. C. Hedgecock
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Earth’S Magnetic Field ◽  
Solar Wind Interaction ◽  
Earth's Magnetic Field

Solar Wind Interaction and Pressure Balance at the Dayside Ionopause of Mars

2021 ◽  
Author(s):  
Feng Chu ◽  
Firdevs Duru ◽  
Zachary Girazian ◽  
Robin Ramstad ◽  
Jasper S. Halekas ◽  
...  
Keyword(s):  
Solar Wind ◽  
Pressure Balance ◽  
Solar Wind Interaction

The solar wind interaction with Mars: Consideration of Phobos 2 mission observations of an ion composition boundary on the dayside

1991 ◽  
Vol 96 (A7) ◽  
pp. 11165 ◽  
Author(s):  
T. K. Breus ◽  
A. M. Krymskii ◽  
R. Lundin ◽  
E. M. Dubinin ◽  
J. G. Luhmann ◽  
...  
Keyword(s):  
Solar Wind ◽  
Ion Composition ◽  
Solar Wind Interaction
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