Research Interests : Stellar dynamics, galactic structure, solar system formation and dynamics, comets.
His research is mostly directed towards understanding the dynamics of a broad range of astrophysical systems, including protoplanetary disks, planetary rings, planetary systems, comets, globular clusters, galaxies and clusters of galaxies.
Among his major contributions to solar-system dynamics are predictions of density waves in planetary rings and the existence of "shepherd" satellites, models of the Kuiper belt and of the Oort cloud of comets, and pioneering efforts to carry out accurate numerical integrations of the long-term evolution of the solar system. His major contributions to galactic dynamics include studies of the stability of stellar systems, of the consequences of dynamical friction, of the nature of dark galaxy halos and their effects on warps in galactic disks, of the interactions of bars with other galaxy components, and of the measurement of bar pattern speeds. With James Binney, he is the author of Galactic Dynamics, a work which has become a classic and the standard reference in this field.
Awards and Honors : 1997 Dirk Brouwer Award of the Division on Dynamical Astronomy, in recognition of his many outstanding contributions to a wide range of dynamical problems in both solar-system and galactic dynamics.
Selected Publications : · Gebhardt, K., Kormendy, J., Ho, L. C., Bender, R., Bower, G., Dressler, A., Faber, S. M., Filippenko, A. V., Green, R., Grillmair, C., Lauer, T. R., Magorrian, J., Pinkney, J., Richstone, D., and Tremaine, S. 2000, "Black hole mass estimates from reverberation mapping and from spatially resolved kinematics", ApJL, submitted
· Gebhardt, K., Bender, R., Bower, G., Dressler, A., Faber, S. M., Filippenko, A. V., Green, R., Grillmair, C., Ho, L., Kormendy, J., Lauer, T. R., Magorrian, J., Pinkney, J., Richstone, D., and Tremaine, S. 2000, "A relationship between nuclear black hole mass and velocity dispersion", ApJL, 539, L13
· Tremaine, S., and Yu, Q. 1999, "Resonant capture, counter-rotating disks, and polar rings", MNRAS, in press
· Evans, N. W., and Tremaine, S. 1999, "Linear multistep methods for integrating reversible differential equations", AJ 118, 1888
· Gebhardt, K., Richstone, D., Kormendy, J., Lauer, T., Ajhar, E., Bender, R., Dressler, A., Faber, S., Grillmair, C., Magorrian, J., and Tremaine, S. 1999, "Axisymmetric, 3-integral models of galaxies: a massive black hole in NGC3379", AJ, in press
· Yu, Q., and Tremaine, S. 1999, "The dynamics of Plutinos", AJ 118, 1873
· Preto, M., and Tremaine, S. 1999, "A class of symplectic integrators with adaptive timestep for separable Hamiltonian systems", AJ, 118, 2532
· Tremaine, S. 1999, "The geometry of phase mixing", MNRAS 307, 877
· Magorrian, J., and Tremaine, S. 1999, "Rates of tidal disruption of stars by massive central black holes", MNRAS 309, 447 (plus table)
· Tremaine, S., and Ostriker, J. P. 1999, "Relaxation in stellar systems, and the shape and rotation of the inner dark halo", MNRAS 306, 662
· Nelson, R. W., and Tremaine, S. 1999, "Linear response, dynamical friction and the fluctuation-dissipation theorem in stellar dynamics", MNRAS 306, 1
· Wiegert, P., and Tremaine, S. 1999, "The evolution of long-period comets", Icarus 137, 84
· Magorrian, J., Tremaine, S., Richstone, D., Bender, R., Bower, G., Dressler, A., Faber, S. M., Gebhardt, K., Green, R., Grillmair, C., Kormendy, J., and Lauer, T. 1998, "The demography of massive dark objects in galaxy centers", AJ 115, 2285
· Richstone, D., Ajhar, E. A., Bender, R., Bower, G., Dressler, A., Faber, S. M., Filippenko, A. V., Gebhardt, K., Green, R., Ho, L. C., Kormendy, J., Lauer, T. R., Magorrian, J., and Tremaine, S. 1998, "Supermassive black holes and the evolution of galaxies", Nature 395, A14
· Murray, N., Hansen, B., Holman, M., and Tremaine, S. 1998, "Migrating planets", Science 279, 69
· Hayes, W., and Tremaine, S. 1998, "Fitting random stable solar systems to Titius-Bode laws", Icarus 135, 549
· Murali, C., and Tremaine, S. 1998, "Linear response of galactic halos to adiabatic gravitational perturbations", MNRAS 296, 749
· Touma, J., and Tremaine, S. 1997, "A map for eccentric orbits in triaxial potentials", MNRAS, 292, 905
· Holman, M., Touma, J., and Tremaine, S. 1997, "Chaotic variations in the eccentricity of the planet orbiting 16 Cyg B", Nature 386, 254
· Lauer, T. R., Tremaine, S., Ajhar, E. A., Bender, R., Dressler, A., Faber, S. M., Gebhardt, K., Grillmair, C., Kormendy, J., and Richstone, D. 1996, "Hubble Space Telescope observations of the double nucleus of NGC 4486B", ApJ 471, L79
· Kormendy, J., Bender, R., Ajhar, E. A., Dressler, A., Faber, S. M., Gebhardt, K., Grillmair, C., Lauer, T. R., Richstone, D., and Tremaine, S. 1996, "Hubble Space Telescope spectroscopic evidence for a 1e9 Msun black hole in NGC 4594", ApJ 473, L91
· Faber, S. M., Tremaine, S., Ajhar, E. A., Byun, Y.-I., Dressler, A., Gebhardt, K., Grillmair, C., Kormendy, J., Lauer, T. R., and Richstone, D., 1997, "The centers of early-type galaxies with HST. IV. Central parameter relations", AJ 114, 1171
· Kormendy, J., Bender, R., Magorrian, J., Tremaine, S., Gebhardt, K., Richstone, D., Dressler, A., Faber, S. M., Grillmair, C., and Lauer, T. R., 1997, "Spectroscopic evidence for a supermassive black hole in NGC 4486B", ApJ 482, L139
· Saha, P., Stadel, J., and Tremaine, S. 1997, "A parallel integration method for solar system dynamics", AJ, 114, 409
· Tremaine, S. 1997, "The centers of elliptical galaxies", in Some Unsolved Problems in Astrophysics, J. N. Bahcall and J. P. Ostriker, eds. (Princeton: Princeton University Press), 137
· Syer, D., and Tremaine, S. 1996, "Made-to-measure N-body systems", MNRAS 282, 223
· Rauch, K. P., and Tremaine, S. 1996, "Resonance relaxation in stellar systems", New Astr. 1, 149
· Kormendy, J., Bender, R., Richstone, D., Ajhar, E. A., Dressler, A., Faber, S. M., Gebhardt, K., Grillmair, C., Lauer, T. R., and Tremaine, S. 1996, "Hubble Space Telescope} spectroscopic evidence for a 2x10^9 Msun black hole in NGC 3115", ApJ 459, L57
· Gebhardt, K., Richstone, D., Ajhar, E. A., Lauer, T. R., Byun, Y.-I., Kormendy, J., Dressler, A., Faber, S. M., Grillmair, C., and Tremaine, S. 1996, "The centers of early-type galaxies with HST: III. Non-parametric recovery of stellar luminosity distributions", AJ 112, 105
· Syer, D., and Tremaine, S. 1996, Non-axisymmetric, scale-free, razor-thin discs", MNRAS 281, 925
· Nelson, R. W., and Tremaine, S. 1996, "The dynamics of warped galaxies", in Gravitational Dynamics, O. Lahav, E. Terlevich and R. Terlevich, eds. (Cambridge: Cambridge University Press), 73
· Tremaine, S. 1995, "Is the solar system stable?", in Frontiers of Astrophysics, Proceedings of the Rosseland Centenary Symposium, P. B. Lilje and P. Maltby, eds. (Oslo: Institute of Theoretical Astrophysics), 85.