Title :
Laboratory Craters: Modeling Experiments for Meteorite Impact Craters?
Author :
Desai, Tara ; Batani, Dimitri ; Bussoli, Marco ; Villa, Anna Maria ; Dezulian, Riccardo ; Krousky, Eduard
Author_Institution :
Dipt. di Fis. G. Occhialini, Univ. degli Studi di Milano - Bicocca, Milan
Abstract :
In this paper, we reveal the feasibility of obtaining laboratory craters to investigate planetary events such as meteorite craters. Experiments were performed by using 0.44-mum laser beam with energy of les15 J in 350 ps (full-width at half-maximum) on aluminum targets. We obtain simple and complex craters similar in contour that are formed due to large meteorite impacts on the terrestrial surface. Simulations performed with the 2-D radiation hydrodynamic code MULTI help in understanding the origin of the experimentally observed central uplift of complex craters.
Keywords :
laser ablation; meteorite craters; 2D radiation hydrodynamic code MULTI; Al; aluminum targets; complex craters; energy 15 J; laser ablation; laser beam; laser produced craters; meteorite impact craters; planetary events; shock pressure; terrestrial surface; time 350 ps; wavelength 0.44 mum; Aluminum; Gas lasers; Hydrodynamics; Laboratories; Laser ablation; Laser modes; Moon; Optical pulses; Pulsed laser deposition; Scanning electron microscopy; Complex craters; laser ablation; laser produced craters; meteorite impact; shock pressure;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2008.926839