Results 21 to 30 of about 7,235 (203)

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

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

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

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

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

To see or not to see a bow shock [PDF]

open access: yesAstronomy & Astrophysics, 2005
OB-stars have the highest luminosities and strongest stellar winds of all stars, which enables them to interact strongly with their surrounding ISM, thus creating bow shocks. These offer us an ideal opportunity to learn more about the ISM. They were first detected and analysed around runaway OB-stars using the IRAS allsky survey by van Buren et al ...
Brown, D, Bomans, DJ
openaire   +2 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

Ion and electron heating at the Martian bow shock. Common for bow shocks or not? [PDF]

open access: yesEarth, Planets and Space, 2014
Two typical bow shock crossings recorded by the Phobos-2 spacecraft in 1989 are considered in the present paper in order to demonstrate that the Martian bow shock is the shock of “common sense” in spite of peculiarities due to the pick-up ions of the Martian origin and their Larmour radius comparable to the scale size of the interaction region between ...
Skalsky, A.   +5 more
openaire   +2 more sources

bow shock breakout

open access: yes, 2018
bow shock ...
Almog Yalinewich (4635409)
core   +5 more sources

In Situ Observation of Electron Acceleration by a Double Layer in the Bow Shock

open access: yesThe Astrophysical Journal, 2023
The importance of the electric potential along the field direction in the acceleration of electrons in the quasi-perpendicular bow shock has been proposed.
C. M. Wang   +6 more
doaj   +1 more source

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