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Jack Lissauer
Jack Lissauers principal focus is on planet and star formation and the detection of extrasolar planets. In addition, he studies the abundance of habitable planets, rotation of planets and comets, cratering, circumstellar disks, resonances and chaos, planetary rings and moons, and spiral density wave theory.He is a Co-Investigator on the Kepler Mission to detect Earth-like extrasolar planets. Ph.D. in Applied Mathematics, University of California, Berkeley, 1982. S.B. in Mathematics, Massachusetts Institute of Technology, 1978. Honors and Awards: Yuval Ne'eman Distinguished Lecturer in Geophysics, Atmosphere and Space Sciences, Tel Aviv University 2001 Harold C. Urey Prize, Division of Planetary Sciences of the American Astronomical Society 1992 Alfred P. Sloan Foundation Fellowship 1987-1991
Featured Article:
Two new moons, named Mab and Cupid, and two new outer rings have been discovered around Uranus by Dr. Lissauer along with former division scientist Dr. Showalter (Science v. 311, p. 973, published online 22 December 2005; see the cover and the Perspective by Murray and the Press announcement). These new members of the uranian system were spotted in images from the Hubble Space Telescope and traced in earlier pictures from Voyager 2. Substantial changes are seen in the passages of the moons and brightness of the rings since the Voyager 2 fly-by. Many of Uranus' moons do not follow simple keplerian orbits but exhibit complex dynamics, which suggest that the whole system is gravitationally unstable or chaotic.
Selected publications: Lissauer, J.J., E.V. Quintana, E.J. Rivera, and M.J. Duncan 2001. The Effect of a Planet in the Asteroid Belt on the Orbital Stability of the Terrestrial Planets. Icarus 154, 449-458.
Rivera, E.J., J.J. Lissauer, R.P. Butler, G.W. Marcy, S.S. Vogt, D.A. Fischer, T.M. Brown, G. Laughlin and G.W. Henry 2005. A ~7.5 Earth-Mass Planet Orbiting the Nearby Star, GJ 876. Astrophys. J. 634, 625-640. Hubickyj, O., P. Bodenheimer and J.J. Lissauer 2005. Accretion of the Gaseous Envelope of Jupiter around a 5 - 10 Earth-Mass Core. Icarus 179, 415-431. Showalter, M.R., and J.J. Lissauer 2006. The Second Ring-Moon System of Uranus: Discovery and Dynamics. Science 311, 973-977 + cover. Published online in Science Express 2005/12/22. Contact Information: Jack Lissauer Mail Stop 245-3 NASA Ames Research Center Moffett Field, CA 94035-1000
email: jlissauer@mail.arc.nasa.gov Phone: 650-604-2293 Fax: 650-604-6779
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