Results 1 to 10 of about 2,940 (168)

Bow shock oscillations of Mars under weakly disturbed solar wind conditions [PDF]

open access: yesNature Communications
Bow shock, where the solar wind first encounters the Martian environment, reflects the complex interplay between the solar wind and Martian upper atmosphere and crustal fields.
Long Cheng   +15 more
doaj   +2 more sources

Properties and models of the Martian bow shock

open access: yes地球与行星物理论评, 2021
Mars does not have a global magnetic field of the internal origin, thus, the solar wind plasma can interact directly with the upper atmosphere and the ionosphere and be shocked with the mass-loading and magnetic pileup processes.
Yifan Li   +4 more
doaj   +1 more source

The spectral scalings of magnetic fluctuations upstream and downstream of the Venusian bow shock

open access: yesEarth, Planets and Space, 2021
We statistically investigate the spectral scalings of magnetic fluctuations at the upstream and downstream regions near the Venusian bow shock and perform a differentiation by shock geometry.
S. D. Xiao   +4 more
doaj   +1 more source

Magnetospheric Multiscale Observations of Earth's Oblique Bow Shock Reformation by Foreshock Ultralow‐Frequency Waves

open access: yesGeophysical Research Letters, 2021
Collisionless shocks can be nonstationary with periodic reformation shown in many simulation results, but direct observations are still tenuous and difficult to conclusively interpret. In this study, using Magnetospheric Multiscale (MMS) observations, we
Terry Z. Liu   +4 more
doaj   +1 more source

A case study in support of closure of bow shock current through the ionosphere utilizing multi-point observations and simulation

open access: yesFrontiers in Astronomy and Space Sciences, 2023
On the bow shock in front of Earth’s magnetosphere flows a current due to the curl of the interplanetary magnetic field across the shock. The closure of this current remains uncertain; it is unknown whether the bow shock current closes with the Chapman ...
Pauline M. Dredger   +2 more
doaj   +1 more source

Martian Bow Shock Oscillations Driven by Solar Wind Variations: Simultaneous Observations From Tianwen‐1 and MAVEN

open access: yesGeophysical Research Letters, 2023
The Martian bow shock stands as the first defense against the solar wind and shapes the Martian magnetosphere. Previous studies showed the correlation between the Martian bow shock location and solar wind parameters.
Long Cheng   +23 more
doaj   +1 more source

Formation of the bow shock indentation: MHD simulation results

open access: yesEarth and Planetary Physics, 2021
Simulation results from a global magnetohydrodynamic (MHD) model are used to examine whether the bow shock has an indentation and characterize its formation conditions, as well as its physical mechanism.
BaoHang Qu   +5 more
doaj   +1 more source

3D model of bow shocks [PDF]

open access: yesAstronomy and Astrophysics, 2010
Summary: Context. Shocks produced by outflows from young stars are often observed as bow-shaped structures in which the \(H_{2}\) line strength and morphology are characteristic of the physical and chemical environments and the velocity of the impact. Aims.
Gustafsson, Maiken   +5 more
openaire   +5 more sources

Comparison of accelerated ion populations observed upstream of the bow shocks at Venus and Mars [PDF]

open access: yesAnnales Geophysicae, 2011
Foreshock ions are compared between Venus and Mars at energies of 0.6~20 keV using the same ion instrument, the Ion Mass Analyser, on board both Venus Express and Mars Express. Venus Express often observes accelerated protons (2~6 times the solar wind
M. Yamauchi   +14 more
doaj   +1 more source

Foreshock cavitons and spontaneous hot flow anomalies: a statistical study with a global hybrid-Vlasov simulation [PDF]

open access: yesAnnales Geophysicae, 2021
The foreshock located upstream of Earth's bow shock hosts a wide variety of phenomena related to the reflection of solar wind particles from the bow shock and the subsequent formation of ultra-low-frequency (ULF) waves.
V. Tarvus   +13 more
doaj   +1 more source

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