Ejecta‐Modulated Bubble Dynamics Play a Dominant Role in Stone Retropulsion [PDF]
Advanced ScienceCavitation bubbles generated by laser absorption in liquids collapse violently, producing high‐speed jets, toroidal bubbles, and shock waves that induce material erosion and object displacement.
Obed S. Isaac +4 more
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The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +2 more sources
Molecules in Supernova Ejecta [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractThe first molecules detected at infrared wavelengths in the ejecta of a Type II supernova, namely SN1987A, consisted of CO and SiO. Since then, confirmation of the formation of these two species in several other supernovae a few hundred days after explosion has been obtained.
Cherchneff Isabelle, Sarangi Arkaprabha
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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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MAGNETOHYDRODYNAMIC EFFECTS IN RELATIVISTIC EJECTA [PDF]
International Journal of Modern Physics D, 2010 We study the problem of deceleration of an arbitrarily magnetized relativistic ejecta in a static unmagnetized medium and its connection to the physics of gamma-ray bursts (GRBs). By computing exact solutions of the Riemann problem describing this scenario, we find that with the same initial Lorentz factor, the reverse shock becomes progressively ...
YOSUKE MIZUNO +6 more
openaire +3 more sources
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
doaj +1 more source