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Jacek Leliwa-Kopystyński Warsaw University, Institute of Geophysics,

Jacek Leliwa-Kopystyński Warsaw University, Institute of Geophysics, 02-093 Warsaw, Pasteura 7, Poland jkopyst@mimuw.edu.pl Prof. Jacek Leliwa-Kopystyński , Leader of the Group of Planetology Dr. hab. Leszek Czechowski, Senior Researcher Dr. hab. Konrad. Kossacki, Senior Researcher

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Jacek Leliwa-Kopystyński Warsaw University, Institute of Geophysics,

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  1. Jacek Leliwa-Kopystyński Warsaw University, Institute of Geophysics, 02-093 Warsaw, Pasteura 7, Poland jkopyst@mimuw.edu.pl Prof. Jacek Leliwa-Kopystyński,Leader of the Group of Planetology Dr. hab. Leszek Czechowski, Senior Researcher Dr. hab. Konrad. Kossacki, Senior Researcher Mgr Beata Dziak-Jankowska, PhD Student Subjects of research: MODELLING OF SURFACE EVOLUTION AND EVOLUTION OF THE INTERIORS OF THE SOLAR SYSTEM BODIES CRATERING OF NON-WATER ICES Cooperating Institutions: Space Research Center of the Polish Academy of Sciences Max Planck Institute, Lindau, Germany Austrian Academy of Sciences, Graz, Austria Centre for Astrophysics and Planetary Sciences, Kent, UK Institute of Low Temperature Sciences, Sapporo, Japan

  2. Impacts (mostly: on the icy and icy/mineral targets) Experiments (co-working with: University of Kent, UK; Sapporo University, Japan) Modelling (particular subject: the Largest Craters on Small Bodies) Impact origin of the asteroids families Evolution of the satellites interiors & relation to the observed tectonic features Densification due to decrease of porosity, Tidally and radiogenic driven convection in the icy satellites Particular subject: Possible origin of the equatorial ridge on Iapetus Sublimation-due evolutionof the tectonic features. In particular the scarps, dunes and craters (on Mars, on cometary nuclei). Evolution of the shape and moment of inertia of the cometary nuclei

  3. Papers related to ices and icy-mineral mixtures (application to medium size icy satellites) Icy/rocky porous mixtures: compaction experiments and interpretation. J. Leliwa-Kopystyński, N. Maeno. Journal of Glaciology, vol. 39, no. 133, pp. 643-655, 1993. Medium - size icy satellites: thermal and structural evolution during accretion. K. J. Kossacki, J. Leliwa-Kopystyński. Planet. Space Sci., Vol. 41, No. 10, pp. 729-741, 1993. Kinetics of pressure induced effects in water ice/rock granular mixtures and application to the physics of icy satellites. J. Leliwa-Kopystyński, L. Makkonen, O. Erikoinen, K. J. Kossacki. Planet. Space Sci., Vol. 42, No. 7, pp. 545-555, 1994. Kinetics of compaction of granular ices H2O, CO2, and (NH3)x(H2O)(1-x) at pressures 2 - 20 MPa and in temperatures 100 - 270 K. Application to the physics of the icy satellites. J. Leliwa-Kopystyński, K. J. Kossacki. Planet. Space Sci., Vol. 43, No. 7, pp. 851-861, 1995. Evolution of porosity in small icy bodies. J. Leliwa-Kopystyński, K. J. Kossacki. Planet Space Sci, Vol. 48, pp. 727-745, 2000. The water-ammonia phase diagram up to 300 MPa: application to icy satellites. J. Leliwa-Kopystyński, M. Maruyama, T. Nakajima. Icarus, 159, 518-528, 2002.

  4. Papers related to icy surfaces (evolution of cometary nuclei and Mars) Laboratory Investigation of the Evolution of Cometary Analogs: Results and Interpretation. K. J. Kossacki, N. I. Kömle, J. Leliwa-Kopystyński, G. Kargl. Icarus, v. 128, pp. 127-144, 1997. Metamorphism of Solar System Ices. J. Eluszkiewicz, J. Leliwa-Kopystyński, K. J. Kossacki. In: Solar System Ices, B. Schmitt, C. de Bergh, and M. Festou (eds.). Kluwer Acad. Publ., pp. 119-138, 1998. Comet 46P/Wirtanen: Evolution of the subsurface layer. K. J. Kossacki, S. Szutowicz, and J. Leliwa-Kopystyński. Icarus, v. 142, pp. 202-218, 1999. Modelling of the shape changes of the 1995 O1 Hale-Bopp and 46P/Wirtanen nuclei caused by water ice sublimation. B. Dziak-Jankowska, J. Leliwa-Kopystyński, M. Królikowska. Earth, Moon and Planets, 90, issue 1-4, 35-44, 2002. Non-uniform seasonal defrosting of subpolar dune field on Mars. K. J. Kossacki, J. Leliwa-Kopystyński. Icarus, 168, 201-204, 2004. Evolution of depressions on comet 67P/Churyumov-Gerasimenko: Role of ice metamorphism. K. J. Kossacki, J. Leliwa-Kopystyński, S. Szutowicz. Icarus, 184, 221-238, 2006. Papers related to convection inside the medium-size icy satellites Solid state convection in the icy satellites: discussion of its possibility. L. Czechowski, J. Leliwa-Kopystyński, Adv. Space Res., 29, No. 5, 751-756, 2002. Solid state convection in the icy satellites: numerical results. L. Czechowski, J. Leliwa-Kopystynski. Adv. Space Res., 29, No. 5, 757-762, 2002. Tidal heating and convection in the medium sized icy satellites. L. Czechowski, J. Leliwa-Kopystyński. Celestial Mechanics and Dynamical Astronomy, 87: 157-169, 2003 Convection driven by tidal and radiogenic heating in medium size icy satellites. L. Czechowski, J. Leliwa-Kopystyński. Planet. Space Sci., 53, 749-769, 2005.

  5. Papers related to Impacts Free particle modelling of the hypervelocity asteroids collisions with the Earth. K. Jach, J. Leliwa-Kopystyński, M. Mroczkowski, R. Świerczyński, P. Wolański. Planet. Space Sci., Vol. 42, No. 12, pp. 1123-1137, 1994. Hypervelocity impact experiments on solid CO2 targets. M. J. Burchell, W. Brooke-Thomas, J. Leliwa-Kopystyński, J. C. Zarnecki. Icarus, v. 131, pp. 210-222, 1998. Impact cratering of granular mixture targets made of H2O ice – CO2 ice – pyrophylite. M. Arakawa, M. Higa, J. Leliwa-Kopystyński, N. Maeno. Planet. Space Sci, Vol. 48, No. 15, pp. 1437-1446, 2000. Impact experiments on porous icy-silicate cylindrical blocks and the implication for disruption and accumulation of small icy bodies. M. Arakawa, J. Leliwa-Kopystynski, N. Maeno. Icarus, 158, 516-531, 2002. Cratering of icy targets by different impactors: laboratory experiments and implications for cratering in the solar system. M. J. Burchell, J. Leliwa-Kopystyński, M. Arakawa. Icarus, 179, 274-288, 2005. Impact Cratering and Break up of the Small Bodies of the Solar System. J. Leliwa-Kopystyński, M. J. Burchell, D. Lowen. In review in Icarus. Asteroids Families: Population and Impact Origin. J. Leliwa-Kopystyński, I. Włodarczyk. In preparation

  6. Cratering of non-water ices and icy/mineral mixtures • Minerals: from monolith rocks through pre-crushed rocks to loose powders. • Icy / mineral systems with different ices: from monolith icy blocks to • granular, compacted and sintered targets prepared from different materials. • H2O, investigated by many authors • (e.g. M. Arakawa, M. Burchell, M. Higa, J. Leliwa-Kopystynski, N. Maeno) • CO2, done (e.g. M. Arakawa, M. Burchell, J. Leliwa-Kopystynski) • Required impact experiments: • Impact velocityfrom hundreds m/s to a few km/s • (2) The targets admixed by or made from • the non-water ices: CO, CH4, NH3

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