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James E. Richardson Jr. (Jim)B.S. degree in Physics: Spring, 2000,from the University of Arizona |
I am currently working as a Research Associate at the Center for Radiophysics and Space Research (CSRC), the research arm of Cornell University's Department of Astronomy. My primary area of interest involves using theory and computer modeling to investigate the geophysics and geomorphology of small solar system bodies -- asteroids, comets, and planetary moons -- with emphasis on impact cratering related processes. This has led to research in three areas: I use analytical and numerical modeling techniques to (1) investigate the effects of impact-induced seismic activity on the geomorphology of asteroid and other cratered surfaces; (2) investigate the evolution of cratered terrains over time, with an emphasis on regolith generation, morphological changes, and cratering statistics; and (3) investigate the cratering process and behavior of impact ejecta produced by the Deep Impact mission on 9P/Comet Tempel 1.
Download a Curiculum VitaeResearch project web pages:Spacecraft mission involvement:Fellowships and awards:Professional organization memberships: |
Cratered Terrain Evolution Model![]() Lunar Maria simulation (40 km width)![]() Lunar Highlands simulation (400 km width) |
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310 Space Sciences Building Cornell University Ithaca, NY 14853 |
Office Phone: (607) 255-3910 Cell Phone: (520) 401-9095 richardson @ astro.cornell.edu |
J.E. Richardson, H.J. Melosh, C.M. Lisse, and B. Carcich (2007).
A ballistics analysis of the Deep Impact ejecta plume: determining comet Tempel 1's gravity, mass, and density,
Icarus, Vol. 190, pp. 357-390. jerichardson_ICAR2007.pdfP.C. Thomas, J.W. Armstrong, S.W. Asmar, J.A. Burns, T. Denk, B. Giese, P. Helfenstein, L. Iess, T.V. Johnson, A. McEwen, L. Nicolaisen, C. Porco, N. Rappaport, J.E. Richardson, L. Somenzi, P. Tortora, E. P. Turtle, and J. Veverka (7 / 2007).
Hyperion's sponge-like appearance,
Nature, Vol. 448, pp. 50-56. pcthomas_NAT2007.pdfD.P. O'Brien, R. Greenberg, and J.E. Richardson (7 / 2006).
Craters on asteroids: reconciling diverse impact records with a common impacting population,
Icarus, Vol. 183, pp. 79-92. dpobrien_ICAR2006.pdfJ.E. Richardson, H.J. Melosh, R. Greenberg, and D.P. O'Brien (12 / 2005).
The global effects of impact-induced seismic shaking on fractured asteroid surface morphology,
Icarus, Vol. 179, pp. 325-349. jerichardson_ICAR2005.pdfM.F. A'Hearn, M.J.S. Belton, W.A. Delamere, J. Kissel, K.P. Klaasen, L.A. McFadden, K.J. Meech, H.J. Melosh, P.H. Schultz, J.M. Sunshine, P.C. Thomas, J. Veverka, D.K. Yeomans, M.W. Baca, I. Busko, C.J. Crockett, S.M. Collins, M. Desnoyer, C.A. Eberhardy, C.M. Ernst, T.L. Farnham, L. Feaga, O. Groussin, D. Hampton, S.I. Ipatov, J.Y. Li, D. Lindler, C.M. Lisse, N. Mastrodemos, W.M. Owen, J.E. Richardson, D.D. Wellnitz, and R.L. White, (10 / 2005).
Deep Impact: excavating comet Tempel 1,
Science, Vol. 310, pp. 258-264. mfahearn_SCI2005.pdf mfahearn_SCI2005_SOM.pdfJ.E. Richardson, (5 / 2005).
The seismic effect of impacts on asteroid surface morphology,
Ph.D. Thesis, Department of Planetary Sciences, University of Arizona. jerichardson_dissertation_2005.pdfJ.E. Richardson, H.J. Melosh, N.A. Artemeiva, and E. Pierazzo (3 / 2005).
Impact cratering theory and modeling for the Deep Impact mission: from mission planning to data analysis,
Space Science Reviews, Vol. 117, pp. 241-267. jerichardson_SSR2005.pdfJ.E. Richardson, H.J. Melosh, and R. Greenberg (11 / 2004).
Impact-induced seismic shaking on asteroid 433 Eros: a surface modification process,
Science, Vol. 306, pp. 1526-1529. jerichardson_SCI2004.pdf jerichardson_SCI2004_SOM.pdfJ.E. Richardson, R.A. Lorenz, and A.S. McEwen (7 / 2004).
Titan's surface and rotation: new results from Voyager 1 images,
Icarus, Vol. 170, pp. 113-124. jerichardson_ICAR2004.pdfP.S. Gural, P. Jenniskens, M. Koop, M. Jones, J. Houston-Jones, D. Holman, and J.E. Richardson (2004).
The relative activity of the 2001 Leonid storm peaks and implications for the 2002 return,
Advances in Space Research, Vol. 33-9, pp. 1501-1506.D.D. Meisel and J.E. Richardson (1999).
Statistical properties of meteors from a simple, passive forward-scatter system,
Planetary and Space Science, Vol. 47, pp. 107-124. ddmeisel_PLSS1998.pdf
J.E. Richardson, (3 / 2008).
Modeling the evolution of cratered terrain in three dimensions: a study of crater creation and erosion on airless bodies,
39th annual Lunar and Planetary Science Conference (LPSC), No. 2079. jerichardson_LPSC2008.pdfJ.E. Richardson, (3 / 2007).
Improving the modeling of impact ejecta behavior: the effects of gravity and strength near the crater rim,
38th annual Lunar and Planetary Science Conference (LPSC), No. 1345. jerichardson_LPSC2007.pdfJ.E. Richardson and H.J. Melosh, (3 / 2006).
Modeling the ballistic behavior of solid ejecta from the Deep Impact cratering event,
37th annual Lunar and Planetary Science Conference (LPSC), No. 1836. jerichardson_LPSC2006.pdfJ.E. Richardson, H.J. Melosh, and R. Greenberg, (3 / 2005).
A stochastic cratering model for asteroids surfaces,
36th annual Lunar and Planetary Science Conference (LPSC), No. 2032. jerichardson_LPSC2005.pdfJ.E. Richardson, H.J. Melosh, and R. Greenberg, (3 / 2004).
The seismic effect of impacts on asteroid surface morphology: early modeling results,
35th annual Lunar and Planetary Science Conference (LPSC), No. 1864. jerichardson_LPSC2004.pdfJ.E. Richardson, H.J. Melosh, and R. Greenberg (3 / 2003).
An impact ejecta behavior model for small irregular bodies,
34th annual Lunar and Planetary Science Conference (LPSC), No. 1241. jerichardson_LPSC2003.pdf
" There is another theory which states that this has already happened."
-- Douglas Adams, 1980
