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Poster Session: Pushing the Limits: Impact Modeling and Experimentation

Thursday, March 16, 2023, 6:30 PM
Town Hall Exhibit Area

Sandnes T. D.* Eke V. R. Kegerreis J. A. Massey R. J. Ruiz-Bonilla S. et al.
No Dilute Core Produced in Simulations of Giant Impacts onto Jupiter [#2159]
Simulations of giant impacts onto Jupiter show that even an exceptionally violent giant impact cannot disrupt a differentiated structure to form a dilute core.
Bray V. J.* Zeilnhofer M. F. Schenk P. M. Bland M. T. Robbins S. J.
Complex Impact Crater Dimensions on Large Icy Bodies [#2721]
Icy world craters / Shapes changed by crust properties / Dwarf planets and moons.
Sasai H.* Arakawa M. Yasui M.
Post Shock Heat Induced by High-Velocity Oblique Impacts on Porous Icy Bodies [#1630]
We present the results on crater size, crater morphology, and post-shock temperature on porous ice produced by oblique impacts in the laboratory.
Huang Z.* Nomura K. Morrissey L. S. Wang J.
Fragmentation of an Ice Nanoparticle During Hypervelocity Impact: Atomic Scale Simulation [#2883]
The relation between impact fragmentation and impact angle is investigated to provide a better model for the speed detection of ice particles in Europa’s exosphere.
Holmes M. C.* Caldwell W. K. Budzien J. L.
Modeling Micrometeorite Bombardment Into Metal Targets Using the FLAG Hydrocode [#1220]
We present 2D axisymmetric vertical micro-impacts involving aluminum, copper, and tin materials, and discuss preliminary results of 3D oblique impacts.
Henderson S. F.* Caldwell W. K.
Validating Explosion Craters from Underground Detonations [#2725]
We model the excavation of the Sedan Crater using the Los Alamos National Laboratory hydrocode FLAG.
Runyon K. D.* Durda D. D. Tsang C. Klein V. Ernst C. M. et al.
Reduced Gravity Ejecta Emplacement Experiments [#1245]
There once was a team with a dream / To study ejecta emplacement / They flew on a plane / On a science campaign / Reduced gravity, oh so free!
Gritsevich M. I.* Kreslavsky M. A.
Theory of Impact Ejecta Focusing in Impact Antipodal Regions [#1432]
We developed a theory of impact ejecta concentration in the antipode. It facilitates interplanetary comparison of antipode ejecta focusing on planetary bodies.
Kurosaki K.* Arakawa M.
Collisional Stripping of the Rock Mantle on the Differentiated Asteroid [#1346]
The impact simulation on a differentiated asteroid is performed to investigate the catastrophic disruption threshold and the escaping mass by SPH simulations.
Allibert L.* Landeau M. Röhlen R. Maller A. Lherm V. et al.
From Subsonic to Supersonic Collisions onto Magma Oceans [#1445]
Large collisions shaped the planet’s history and their effects are still under investigation. Here, we study the effect of impact velocity on the crater growth.
Lagain A.* Kreslavsky M. Baratoux D. Liu Y. Devillepoix H. A. R. et al.
Has the Impact Flux of Small and Large Asteroids Varied Through Time on Mars, the Earth and the Moon? [#1872]
Our analysis shows that the impact flux did not experience any significant short or long-term fluctuation over the last 600 Ma on Mars, the Moon, and Earth.
Schedl A.*
Using Meteorite Impact Associated Seismites To Estimate Seismic Efficiency [#1636]
In previous work I estimated seismic efficiency from seismites. Revisions are the result of new equations, new data, and new ideas about what data is reliable.
Giguere T. A.* Gillis-Davis J. J.
Crater Diameter Measurements: A Key Component for Determining Accurate Absolute Model Ages (AMA) [#1958]
Promoting knowledge of impact crater morphology and identifying the rimcrest (especially for new crater counters) to produce more accurate AMAs.
Toyoshima H.* Arakawa M. Yasui M. Sasai H. Hasegawa S.
High-Velocity Oblique Impact Experiments on Wet Sand Targets Simulating Habitable Planets [#1881]
We conduct high-velocity impact experiments on wet sand with various water contents to study the effect of water contents on the crater size scaling law.
Kurosawa K.* Collins G. S. Davison T. M. Okamoto T. Ishibashi K. et al.
Thermal Decomposition of Magnetite Due to Impact Heating [#1887]
We conducted both laboratory impact experiments and shock physics modeling to investigate thermal decomposition of magnetite due to impact heating.
Kurosawa K.* Sato M. Ono H. Tomioka N. Niihara T. et al.
Temperature of Granular Materials Immediately Beneath the Impact Point [#1889]
We conducted shock recovery experiments with granular materials in an open system and the peak temperature in shocked residues with remanent magnetization.
Gosselin G. J.* Freed A. M. Johnson B. C.
Formation of Mercury's Caloris Basin Provides Insight into the Multiring to Megabasin Transition [#2651]
Impact basins of Caloris’ size undergo a fundamentally different formation process compared to traditional multiring basins such as Orientale Basin on the Moon.
Larson J. N.* Fernandez Y. Sarid G.
The Fate of Ejecta in NEA Binary Systems: Dependency on Rotation Periods and Mass Ratios [#2956]
Strike a binary / To spin a dynamic tale / New debris patterns.
Flynn G. J.* Strait M. Willman H. Rolling A. Macke R. et al.
Response to Hypervelocity Impacts and Physical Properties of the Aba Panu L3 Ordinary Chondrite [#1250]
We measured momentum transfer in hypervelocity cratering impact, crater dimensions, grain and bulk densities, and porosity of the Aba Panu L3 ordinary chondrite.
Christoffersen R.* Erickson T. M. Cline C. J. Cintala M. J. Rahman Z. et al.