Dr. Gunther Kletetschka Astrochemistry Laboratory, Code 691 NASA Goddard Space Flight Center Greenbelt, MD 20771 Phone: (301) 286-3804 Email: Gunther Kletetschka

Current Position

Research Professor, Catholic University of America, Astrochemistry Laboratory

Education

• August 1998: Ph.D., Department of Geology and Geophysics, University of Minnesota, MN, USA
• May, 1994: M. S., Department of Geology and Geophysics, University of Minnesota, MN, USA
• October, 1989: RNDr (- Rerum Naturalium Doctoris corresponds to M. S)., School of Math and Physics, Charles' University - Prague, CZ

Professional Experience

• Jan 2005-present: NASA/Goddard Space Flight Center, Solar System Exploration, Contractor
• July 2003-present Catholic University of America: Institute of Astrophysics and Computational Sciences: Research Professor
• Feb 2003-July 2003: University of Delaware: Bartol Research Institute: Research Scholar
• Jan 2003-present, Academy of Science in Czech Republic, Institute of Geology, Researcher
• Apr 2002-Jan 2003: Howard University: Department of Physics and Astronomy: Postdoctoral Research Associate
• Feb 2002-July 2002: Montgomery College: Physical Sciences Department: Lecturer
• Oct 2000-March 2002: Catholic University of America: Chemistry Department: Research Associate
• Oct 2000-Dec 2004: NASA/Goddard Space Flight Center, Laboratory of Extraterrestrial Physics, Contractor
• Oct 1998-Oct 2000: National Research Council: Postdoctoral Research Associate
• Oct 1998-Oct 2000: NASA/Goddard Space Flight Center, Laboratory of Terrestrial Physics, Contractor
• Sep 1991-Sep 1998: University of Minnesota: Department of Geology and Geophysics: Teaching/Research assistant
• Jan 1987-June 1991: Charles University: Department of Geophysics: Research/Teaching assistant

Major Research Activities

• Material magnetism
• Design of magnetic elements for James Web Space Telescope
• Aging Phenomena
• Magnetocaloric effect
• Silicon nanowires for DNA detection
• Impact craters, Meteoritics
• Single wall carbon nanotubes

Grants and Contracts

• (Nov 1 2004-Oct 31 2006) NASA NNG05GA35G: Mechanical performance of Magnetically-Actuated Microshutter Arrays for the James Web Space Telescope, via Catholic University of America
• (May 1 2004-April 30 2006) NASA NNG04GH77A: Cryogenic testing of Micro Shutters for James Web Space Telescope , via Catholic University of America
• (May 1 2003-April 30 2005) NASA NAG5 - 13405: Magnetic Characterization of Micro Shutters for James Web Space Telescope , via Catholic University of America
• (Apr 1 2002-May 14 2003) NASA NAG5 - 12110: Magnetic Properties of Primitive Chondrites, via Howard University
• (Nov 1 2001-March 31, 2002) NASA NCC5-452, Paleomagnetism of Mars, via Catholic University of America
• (Nov 1 2000-Oct 31 2001) NASA NCC5-452, Mars Global Surveyor Magnetic Data Analysis, via Catholic University of America
• (Nov 1 1998-Oct 31 2000) Solid Earth and Natural Hazards: SENH 98-0134: Geological Interpretation of Satellite-Altitude Crustal Magnetic Anomaly Data, via National Research Council of America

Memberships

• 2005-today Supercentenarian Research Foundation
• 2002-today Geological Society of Washington
• 2001- 2002 The Planetary Society
• 2000-today The International Society for the Study of the Origin of Life
• 1996-1997 Graduate student representative at faculty meetings
• 1995-1996 The Geological Society of America
• 1993-1994 Library committee
• 1992 - today American Geophysical Union
• 1992-1997 Student Christian organization (FOCUS - U of M organization)
• 1991-1998 Institute for Rock Magnetism
• 1991-1997 Commonwealth Terrace Cooperative - student housing

Selected Publications

• 2007   Magnetic record associated with tree ring density: Possible climate proxy, G. Kletetschka, P. Pruner, D. Venhodova, and J. Kadlec Geochemical Transactions, 8:2, doi: 10.1186/1467-4866-8-2,.
• 2006   Correction of the Reply to the comment on the paper . Grain size dependent potential for self generation of magnetic anomalies on Mars via thermoremanent magnetic acquisition and magnetic interaction of hematite and magnetite. G. Kletetschka, Phys. Earth Planet. Inter., 148, 149-156, 2005, made by: Jafar Arkani-Hamed, Physics of the Earth and Planetary Interiors, 159(1-2), 127-128,.
• 2006   Comment to a paper "The origin of high magnetic remanence in the fault pseudotachylites: Theoretical considerations and implication for coseismic electrical currents", G. Kletetschka, Tectonophysics, 419(I-4), 99, JUN.
• 2006   The effects of small metal additions (Co, Cu, Ga, Mn, Al, Bi, Sn) on the magnetocaloric properties of the Gd5Ge2Si2 alloy.R. D. Shull, V. Provenzano, A. J. Shapiro, A. Fu, M. W. Lufaso, J. Karapetrova, G. Kletetschka, and V. Mikula. Journal Of Applied Physics, 99(8), Art. No. 08K908, APR 15.
• 2006   Analysis of telomere length and telomerase activity in tree species of various lifespans, and with age in the bristlecone pine Pinus longaeva. B. E. Flanary and G. Kletetschka, REJUVENATION RESEARCH, 9 (1): 61-63 SPR.
• 2006   TRM in Low Magnetic Fields: a minimum field that can be recorded by large multidomain grain. G. Kletetschka, M. D. Fuller, T. Kohout, P. J. Wasilewski, N. F. Ness, M. H. Acuna. Physics of the Earth and Planetary Interiors 154(3-4), 290-298, MAR.
• 2005   Reply to the Comment on the paper "Grain size dependent potential for self generation of magnetic anomalies on Mars via thermoremanent magnetic acquisition and magnetic interaction of hematite and magnetite". G. Kletetschka, N. F. Ness, J.E.P. Connerney, M.H. Acuna, P.J. Wasilewski, Physics of the Earth and Planetary Interiors, 153(4), 238-239, DEC.
• 2005   Tectonic implication of Mars Magnetism., J.E.P. Connerney, M.H. Acuna, N. F. Ness, G. Kletetschka, D. L. Mitchell, and R. P. Lin, Proceedings of the National Academy of Sciences, 102(42), 14970-14975.
• 2005   Analysis of telomere length and telomerase activity in tree species of various life-spans, and with age in the bristlecone pine "Pinus longaeva". B. E. Flanary and G. Kletetschka, Biogerontology 6 (2), 101-111.
• 2005   Cryogenic characterization and testing of magnetically actuated microshutter arrays for the James Webb Space Telescope.T.T. King, G. Kletetschka, M.A. Jah, M.A. Beamesderfer, M.J. Li, L.L. Wang, S.H. Moseley, L.M. Sparr, M.D. Jhabvala, A.S. Kutyrev, §, R.F. Silverberg, D. Rapchun, Y. Zheng, D.S. Schwinger, G.M. Voellmer, Journal of Micromechanics and Microengineering, 15, 1594-1600.
• 2005   Chicxulub impact ejecta deposits in southern Quintana Roo, Mexico, and central Belize, In Large meteorite impacts III, edited by T. Kenkmann, F. Horz, and Alex Deutsch, K.O. Pope, A. C. Ocampo, A. G. Fisher, F. J. Vega, D. E. Ames, D. T. King, B. W. Fouke, R. J. Wachtman, and G. Kletetschka, The Geological Society of America, Special Paper 384, 171-190.
• 2005   Identification of magnetic minerals by Scanning Electron Microscope and application of ferrofluid. G. Kletetschka, and A. Kontny, Studia geophysica et geodaetica, 49, 153-162,.
• 2005   Grain-Size-Dependent Potential for Self Generation of Magnetic Anomalies on Mars via Thermoremanent Magnetic Acquisition and Magnetic Interaction of Hematite and Magnetite, G. Kletetschka, Norman F. Ness, J. E. P. Connerney, M. H. Acuna, P. J. Wasilewski, Physics of the Earth and Planetary Interiors 148 (2-4), 149-156.
• 2004   Pressure effects on Martian crustal magnetization near large impact basins, G. Kletetschka, J. E. P. Connerney, N. F. Ness, and M. H. Acuna, Meteoritics & Planetary Science, Volume 39, Number 11, pp. 1839-1848.
• 2004   An Empirical Scaling Law for Acquisition of Thermoremanent Magnetization, G. Kletetschka, M. H. Acuna, T. Kohout, P. J. Wasilewski, and J. E. P. Connerney, Earth and Planetary Science Letters, 226 (3-4), 521-528.
• 2004   The influence of terrestrial processes on meteorite magnetic records, T. Kohout, G. Kletetschka, M. Kobr, P. Pruner and J.P. Wasilewski, Physics and Chemistry of the Earth 29, 885-897.
• 2003   Possible mineral sources of magnetic anomalies on Mars, G. Kletetschka, N. F. Ness, P. J. Wasilewski, J. E. P. Connerney, and M. H. Acuna, The Leading Edge, 22(8), 766-768.
• 2003   Magnetic remanence in Murchison meteorite, G. Kletetschka, T. Kohout, and P. J. Wasilewski, Meteoritics & Planetary Science, 38(3), 399-406.
• 2003   Magnetic Anomalies on the Tree Trunks, G. Kletetschka, V. Zila, and P. J. Wasilewski, Studia geophysica et geodetica, 47(2), 371-379.
• 2002   The role of hematite - ilmenite solid solution in the production of magnetic anomalies in ground and satellite based data, G. Kletetschka, P.J. Wasilewski, and P.T. Taylor, Tectonophysics, 347 (1-3), 167-177.
• 2002   NEAR Magnetic Field Observations at Eros: First Measurements from the Surface of an Asteroid, M.H. Acuna, B.J. Anderson, C.T. Russell, P. Wasilewski, G. Kletetschka, L. Zanetti and N. Omidi, Icarus, 155, 220-228.
• 2002   433 Eros, problems with the meteorite magnetism record in attempting an asteroid match, P. J. Wasilewski,, M.H. Acuna, and G. Kletetschka, Meteoritics and Planetary Science, 37, 937-950.
• 2002   Grain size limit for SD hematite, G. Kletetschka, and P.J. Wasilewski, Physics of the Earth and Planetary Interiors 129(1-2), 173-179.
• 2001   Remanent Magnetism in a Recent Basaltic Tree Mold, G. Kletetschka, IRM Quarterly 11(4), 2-3.
• 2001   The Global Magnetic Field of Mars and Implication for Crustal Evolution: J.E. Connerney, M.H. Acuna, P.J. Wasilewski, G. Kletetschka, N.F. Ness, H. Reme, R.P. Lin, and D.L. Mitchell, Geophysical Research Letters, 28(21), 4015-4018.
• 2001   Electric discharge in carbonaceous meteorites?, in First steps in the origin of life in the universe, edited by J. Chela-Flores, T. Owen and F. Raulin, G. Kletetschka, pp. 157-160, Kluwer Academic, Trieste, Italy.
• 2001   Multidomain Hematite: A Source of Planetary Magnetic Anomalies?,D. J. Dunlop and G. Kletetschka, Geophysical Research Letters 28(17), 3345-3348.
• 2000   Hematite vs. magnetite as the signature for planetary magnetic anomalies? G. Kletetschka, P.J. Wasilewski and P.T. Taylor, Physics of the Earth and Planetary Interiors 119(3-4), 259-267, 2000.
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• 2000   Magnetic characterization of reduction in Mount Fuji basaltic tree mold, P.J. Wasilewski, G. Kletetschka and T. Dickinson, Geophysical Research Letters 27(10), 1543-1547, 2000.
• 2000   The magnetic properties of aggregate polycrystalline diamond: Implication for carbonado petrogenesis, G. Kletetschka, P.T. Taylor, P.J. Wasilewski and H.G.M. Hill, Earth and Planetary Science Letters, 181, 279-290.
• 2000   Determining the ages of comets from the fraction of crystalline dust, J.A. Nuth, H.G.M. Hill and G. Kletetschka, Nature 406(20 July), 275-276.
• 2000   Mineralogy of the sources for magnetic anomalies on Mars, G. Kletetschka, P.J. Wasilewski and P.T. Taylor, Meteoritics and Planetary Science 35(5), 895-899.