Survival of the impactor during hypervelocity collisions II: An analogue for high porosity targets

Abstract

We investigated how a target's porosity affects the outcome of a collision, with respect to the impactor's fate. Laboratory impact experiments using peridot projectiles were performed at a speed range between 0.3 and 3.0 km/s, onto high porosity water-ice (40%) and fine-grained calcium carbonate (70%) targets. We report that the amount of implanted material in the target body increases with increasing target's porosity, while the size frequency distribution of the projectile's ejecta fragments becomes steeper. A supplementary Raman study showed no sign of change of the Raman spectra of the recovered olivine projectile fragments indicate minimal physical change.

arXiv comment6 pages, 6 figures

References in corpus (6)

• Catastrophic disruptions revisited
• Delivery of Dark Material to Vesta via Carbonaceous Chondritic Impacts
• Puzzling asteroid 21 Lutetia: our knowledge prior to the Rosetta fly-by
• On the origin of the Almahata-Sitta meteorite and 2008TC3 asteroid
• Survival of the impactor during hypervelocity collisions I: An analogue for low porosity targets
• Variegation and space weathering on asteroid 21 Lutetia

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