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Tara Desai, Dipartimento di Fisica, G.Occhialini, Università degli studi Milano
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Tara Desai, Dipartimento di Fisica, G.Occhialini, Università degli studi Milano
"Laboratory craters: modeling experiments for Meteorite impact craters?" Abstract: A vibrant and exciting laboratory astrophysical research is emerging with intense lasers. In this talk we discuss high power laser application to planetary events. We have experimentally studied the laser produced craters using the facilities at MIB, Milano, Italy and PALS, Prague, Cz. Republic to investigate the possibility of planetary events such as meteorite craters. We have measured the dimensions and contours of the laboratory craters by adopting different techniques. We have obtained two types of craters in the laboratory viz. simple which are circular and bowl shaped depressions, and intricate structures resembling complex craters produced by large meteorites impact on the planets. Further, we have corroborated our experimental results using 2-D Multi simulations which interestingly predict the possibility of generating complex craters due to laser ablation. Details of the experimental results will be discussed. February 21, 2008 2:00 pm - 3:00 pm 2422 SRB - Donahue Room |
