Results 31 to 40 of about 1,164 (197)

Particle Acceleration at Interplanetary Shocks [PDF]

AIP Conference Proceedings, 2008
The acceleration of interstellar pick-up ions as well as solar wind species has been observed at a multitude of interplanetary (IP) shocks by different spacecraft. This paper expands upon previous work modeling the phase space distributions of accelerated ions associated with the shock event encountered on day 292 of 1991 by the Ulysses mission at 4.5 ...
Matthew G. Baring, Errol J. Summerlin, Gang Li, Qiang Hu, Olga Verkhoglyadova, Gary P. Zank, R. P. Lin, J. Luhmann   +7 more
openaire   +2 more sources

Acceleration of Suprathermal protons near an Interplanetary Shock

Astronomy & Astrophysics, 2023
Context. Interplanetary collisionless shocks are known to be sources of energetic charged particles up to hundreds of MeV. However, the underlying acceleration mechanisms are still under debate.Aims. We determine the properties of suprathermal protons accelerated by the interplanetary shock on 2021 November 3 with the unprecedented ...
Liu Yang, Verena Heidrich-Meisner, Lars Berger, Robert Wimmer-Schweingruber, Linghua Wang, Jiansen He, Xingyu Zhu, Die Duan, Alexander Kollhoff, Daniel Pacheco, Patrick Kühl, Zigong Xu, Duncan Keilbach, Javier Rodríguez-Pacheco, George Ho   +14 more
openaire   +1 more source

Hexapod Locomotion Across Structured and Unstructured Terrains: A Data‐Driven Review of Modeling, Control, and Validation

Journal of Field Robotics, EarlyView.
ABSTRACT The design of a hexapod is complex and requires integration between kinematic models, control systems, and sensing. Existing literature has reviewed these sub‐systems in isolation. Since 2021, there has been no review of the field despite significant advancements in soft soil, lunar traversal, and artificial intelligence.
Akhil Rampersad, Bashan Naidoo
wiley   +1 more source

Ion dynamics in quasi-perpendicular collisionless interplanetary shocks: A case study

Frontiers in Physics, 2013
Interplanetary shocks are believed to play an important role in the acceleration of charged particles in the heliosphere. While the acceleration to high energies proceeds via the diffusive mechanism at the scales exceeding by far the shock width, the ...
Michael eGedalin, Wolfgang eDroege
doaj   +1 more source

On the role of interplanetary shocks in accelerating MeV electrons

Astronomy & Astrophysics, 2023
Context. One of the sources of solar energetic particle (SEP) events is shocks that are driven by fast coronal mass ejections (CMEs). They can accelerate SEPs up to relativistic energies and are attributed to the largest SEP events. New studies suggest that CME-driven shocks can potentially accelerate electrons to MeV energies in the vicinity of the ...
N. Talebpour Sheshvan, N. Dresing, R. Vainio, A. Afanasiev, D. E. Morosan   +4 more
openaire   +4 more sources

The first discovery of a shocked, metasomatised CV3 chondrule‐fragment in a (Al,Cu)‐bearing micrometeorite

Meteoritics &Planetary Science, EarlyView.
Abstract We report the discovery of the second (Al,Cu)‐alloy–bearing micrometeorite, FB‐A2, recovered from Mount Gariglione (southern Italy), representing the sixth such occurrence worldwide. Although chondritic in nature, FB‐A2 differs markedly from previously described microspherules.
Giovanna Agrosì, Paola Manzari, Daniela Mele, Johan Villeneuve, Tiziano Catelani, Mattew J. Genge, Luca Bindi   +6 more
wiley   +1 more source

Turbulence development behind the bow shock during disturbed and undisturbed solar wind

Solar-Terrestrial Physics
Magnetosheath is a transition layer between the solar wind and the magnetosphere and may contribute to the geoeffectiveness of various large-scale interplanetary phenomena.
Rakhmanova L. S., Khokhlachev A. A., Riazantseva M. O., Yermolaev Y. I., Zastenker G. N.   +4 more
doaj   +1 more source

Interplanetary circumstances of quasi‐perpendicular interplanetary shocks in 1996–2005 [PDF]

Journal of Geophysical Research: Space Physics, 2010
The angle (θBn) between the normal to an interplanetary shock front and the upstream magnetic field direction, though often thought of as a property “of the shock,” is also determined by the configuration of the magnetic field immediately upstream of the shock. We investigate the interplanetary circumstances of 105 near‐Earth quasi‐perpendicular shocks
I. G. Richardson, H. V. Cane
openaire   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

The Speed of Interplanetary Shocks Through the Magnetosheath: A Toy Model

Geophysical Research Letters
Before interacting with the magnetosphere, an interplanetary shock travels through the magnetosheath where its speed and shape are modified. Previous studies have reported widely different answers to the question of the speed of an interplanetary shock ...
C. Moissard, C. Butcher, E. Ruler, J. Richardson, B. Michotte de Welle, W. Steward, M. Pritchard, D. Gonzalez Del Valle, V. Defayet, A. Bernal, V. Cavicchi, V. David   +11 more
doaj   +1 more source