Results 51 to 60 of about 9,433 (226)
Generation and evolution of interplanetary slow shocks [PDF]
Annales Geophysicae, 1996 It is well known that most MHD shocks observed within 1 AU are MHD fast shocks. Only a very limited number of MHD slow shocks are observed within 1 AU.
C.-C. Wu, S. T. Wu, M. Dryer
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Turbulence Upstream and Downstream of Interplanetary Shocks
Frontiers in Physics, 2021 The paper reviews the interaction of collisionless interplanetary (IP) shocks with the turbulent solar wind. The coexistence of shocks and turbulence plays an important role in understanding the acceleration of particles via Fermi acceleration mechanisms,
A. Pitňa +4 more
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Surface‐Driven Protocell Formation in Geologically Relevant Early Earth Environment
ChemSystemsChem, Volume 8, Issue 2, March 2026.Illustration of a prebiotic early‐Earth environment showing cell‐like protocells (blue spheres) and other complex organic molecules (pink and green spheres) distributed across terrestrial surfaces and within subsurface niches. Volcanic landscapes and mineral‐rich substrates provide diverse geochemical settings for the assembly and evolution of ...
Pamela Knoll, Silvia Holler
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Interplanetary Shocks between 0.3 and 1.0 au: Helios 1 and 2 Observations
The Astrophysical Journal, 2023 The Helios 1 (H1) and Helios 2 (H2) spacecraft measured the solar winds at a distance between ∼0.3 and 1.0 au from the Sun. With increasing heliocentric distance ( r _h ), the plasma speed is found to increase at ∼34–40 km s ^−1 au ^−1 and the density ...
Rajkumar Hajra +5 more
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Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.Abstract Substorms are often described by a loading‐unloading cycle, where onset follows gradual accumulation of solar wind magnetic flux in the magnetosphere. Yet observations indicate that intense substorms can also be directly driven, though the underlying mechanism remains unresolved.
Yong Ren +8 more
wiley +1 more source
On the solar origin of interplanetary disturbances observed in the vicinity of the Earth [PDF]
Annales Geophysicae, 2003 The solar origin of 40 interplanetary disturbances observed in the vicinity of the Earth between January 1997 and June 1998 is investigated in this paper.
N. Vilmer +4 more
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Low Density Drivers of Strong Interplanetary Shocks [PDF]
International Astronomical Union Colloquium, 1996 AbstractThe theory that most, if not all, interplanetary shocks are caused by coronal mass ejections (CMEs) faces serious problems in accounting for the strongest shocks. The difficulties include (i) a remarkable absence of very strong shocks during solar maximum 1980 when CMEs were prolific, (ii) unrealistic initial speeds near the Sun for impulsive ...
openaire +1 more source
Martian Atmospheric Loss Through Foreshock Transient Events
Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.Abstract At Mars, the MAVEN spacecraft has made observations of Hot Flow Anomalies (HFAs) in the foreshock. Due to the bow shock's proximity to the planet, it is theorized that HFAs contribute to atmospheric escape at Mars through the excavation of ionospheric ions.
Alexandros C. Cooke‐Politikos +5 more
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MHD waves at the pre-front of interplanetary shocks on September 6 and 7, 2017
Solar-Terrestrial PhysicsWe analyze strong space weather disturbances during first ten days of September 2017, using the geomagnetic Dst index, parameters of normals to interplanetary shock fronts, direct measurements of interplanetary magnetic field, solar wind, and cosmic ray ...
Starodubtsev S. A., Shadrina L. P.
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Plasma properties of driver gas following interplanetary shocks observed by ISEE-3 [PDF]
, 1982 Plasma fluid parameters calculated from solar wind and magnetic field data obtained on ISEE 3 were studied. The characteristic properties of driver gas following interplanetary shocks was determined.
Ashbridge, J. R. +5 more
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