Analogy of meteorite impacts in laboratory conditions

0359355 - FZÚ 2012 RIV SE eng J - Článek v odborném periodiku
Desai, T. - Bussoli, M. - Dezulian, R. - Villa, A. - Krouský, Eduard - Aliverdiev, A.A. - Kubkowska, M. - Wolowski, J.
Analogy of meteorite impacts in laboratory conditions.
Physica Scripta. T142, č. 1 (2010), s. 1-5. ISSN 0031-8949. E-ISSN 1402-4896
Grant CEP: GA MŠMT(CZ) LC528
Výzkumný záměr: CEZ:AV0Z10100523
Klíčová slova: laser generated plasma * craters * astrophysics
Kód oboru RIV: BH - Optika, masery a lasery
Impakt faktor: 0.982, rok: 2010

n this work, we report on the possibility of using laser-generated craters to investigate planetary events such as meteorite impact craters. Experiments using a 0.44 mu m/350 ps wavelength laser beam on aluminum foil targets are performed. We obtain simple and complex craters similar in contour to those formed due to meteorite impacts on the terrestrial surface. Our preliminary results show that the central peak of complex craters seems to be higher because of the turbulence beneath the crater floor. Results obtained using a two-dimensional radiation hydrodynamic code, MULTI, show that the laser ablation surface modifies and rises. This could be one of several factors explaining the central peak existence.
Trvalý link: http://hdl.handle.net/11104/0197155