Results 1 to 10 of about 50,731 (225)
A numerical study of the interaction between two ejecta in the interplanetary medium: one- and two-dimensional hydrodynamic simulations [PDF]
Annales Geophysicae, 2004 We studied the heliospheric evolution in one and two dimensions of the interaction between two ejecta-like disturbances beyond the critical point: a faster ejecta 2 overtaking a previously launched slower ejecta 1. The study is based on a
A. Gonzalez-Esparza +2 more
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Nepheline-kalsilite microperthites in ejecta from the Alban Hills (Italy) [PDF]
Bulletin of the Geological Society of Finland, 1985 Microprobe analyses carried out on exsolved nepheline and kalsilite phases of microperthites occurring in three ejecta from the Alban Hills (Roman comagmatic region) have shown: (1) a practically continuous compositional variation from Ks to Ne (bulk ...
C. Aurisicchio, M. Federico
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Groove formation on Phobos from reimpacting orbital ejecta of the Stickney crater
Earth and Planetary Physics, 2022 Numerous linear grooves have long been recognized as covering the surface of Phobos, but the mechanisms of their formation are still unclear. One possible mechanism is related to the largest crater on Phobos, the Stickney crater, whose impact ejecta may ...
XiangYu Xi, Min Ding, MengHua Zhu
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Dynamic simulations of projectile penetration into granular medium
Mechanical Engineering Journal, 2014 Dynamic FEM and DEM simulations are carried out to investigate dynamic penetration of a projectile into a target of granular medium. Spatial distribution and time dependence of ejecta are clarified together with their trajectories in medium.
Kinya OGAWA +2 more
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Fine debris flows formed by the Orientale basin
Earth and Planetary Physics, 2020 The prototype for investigations of formation mechanisms and related geological effects of large impact basins on planetary bodies has been the Orientale basin on the Moon.
YuZhen Cai +3 more
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Evolutionary signatures in complex ejecta and their driven shocks [PDF]
Annales Geophysicae, 2004 We examine interplanetary signatures of ejecta-ejecta interactions. To this end, two time intervals of inner-heliospheric (≤1AU) observations separated by 2 solar cycles are chosen where ejecta/magnetic clouds are in the process of interacting to ...
C. J. Farrugia, D. B. Berdichevsky
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Comparison of Topographic Roughness of Layered Deposits on Mars
Remote Sensing, 2023 Impact craters with layered ejecta deposits are widespread on Mars. Prevailing views suggest that such ejecta were formed due to the involvement of target water and/or water ice in the impact excavation and/or the post-deposition movement of the impact ...
Wei Cao +4 more
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The Dimorphos ejecta plume properties revealed by LICIACube [PDF]
NatureJ R Brucato, J-Y Li, Elisabetta Dotto
exaly +2 more sources
Scientific Reports, 2021 Impact ejecta formation and emplacement is of great importance when it comes to understanding the process of impact cratering and consequences of impact events in general. Here we present a multidisciplinary investigation of a distal impact ejecta layer,
Sanna Holm-Alwmark +10 more
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Forbush Decrease Characteristics in a Magnetic Cloud
Space Weather, 2020 Based on the new mechanism, the Forbush decrease characteristics are calculated for eight magnetic cloud types. It is shown that the Forbush decrease amplitude does not depend on the magnetic cloud type, while the anisotropy strongly does.
A. S. Petukhova +2 more
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