MALHOTRA, RENU / Astronomy / Researchers

International Center for Scientific Research


Astronomy / MALHOTRA, RENU


Staff Scientist at the Lunar and Planetary Institute (NASA).

Research interests

Dr. Malhotra's research is directed towards understanding planetary systems -- their orbital dynamics, and their formation and evolution. She uses mathematical analysis and computer modelling to trace the relationship between observed orbital and physical characteristics of planetary bodies and the (usually unobserved) processes of planetary system formation and long term dynamical evolution.

Current topics of research are: Kuiper Belt dynamics, stability of the Solar system and of extra-solar planetary systems, orbital migration history of giant planets, and dust distribution in circumstellar debris disks.

Prizes and awards

Harold C. Urey Prize, AAS-Division for Planetary Sciences, 1997

Asteroid 6698 named Malhotra, International Astronomical Union, 1997


Dermott, S.F., Malhotra, R., and Murray, C.D., Dynamics of the Saturnian and Uranian satellites: A chaotic route to melting Miranda? Icarus 76:295-334 (1988).

Malhotra, R., Tidal origin of the Laplace resonance and the resurfacing of Ganymede, Icarus 94:399-412 (1991).

Malhotra, R., D. Black, A. Eck and A. Jackson, Resonant orbital evolution of the putative planetary system of PSR1257+12, Nature 356:583-35 (1992).

Malhotra, R., The origin of Pluto's peculiar orbit, Nature 365:819-821 (1993).

Malhotra, R., The origin of Pluto's orbit: implications for the Solar system beyond Neptune, AJ 110:420-429 (1995).

Malhotra, R., The phase space structure in the Kuiper Belt, AJ 111:504-516 (1996).

Liou, J.C. and R. Malhotra, Depletion of the outer asteroid belt, Science 275:375-377 (1997).

Malhotra, R. (1998), Orbital resonances and chaos in the Solar system, Invited lecture at the International Workshop on Planetary Sciences, Solar System Formation and Evolution, Rio de Janeiro, Brazil, ASP Conference Series vol. 149.

Malhotra, R., Migrating Planets, Scientific American 281(3):56-63 (1999).

Hahn, J.M., and Malhotra, R., Orbital evolution of planets embedded in a massive planetesimal disk, AJ 117:3041-3053 (1999).

Showman, A. and Malhotra, R., The Galilean Satellites, Science 286:77 (1999).

Malhotra, R., Duncan, M. and Levison, H., Dynamics of the Kuiper Belt, in Protostars and Planets IV , University of Arizona Press-Tucson, p. 1231-1254 (2000).

Stepinski, T.F., Malhotra, R., and Black, D.C., The Upsilon Andromedae System: Models and Stability, ApJ 545:1044-1053 (2000).

Allen, R.L., Bernstein, G.M. and Malhotra, R., The edge of the Solar system, ApJ-Letters 549:L241-L244 (2001).

Allen, R.L., Bernstein, G.M. and Malhotra, R., Observational Limits on a Distant Cold Kuiper Belt, Astron. J., 124, 2949-2954 (2002).

Malhotra, R., A dynamical mechanism for establishing apsidal resonance, ApJ-Letters, 575:L33-L36 (2002 August 10).

Moro-Martin, A. and Malhotra, R., A Study of the Dynamics of Dust from the Kuiper Belt: Spatial Distribution and Spectral Energy Distribution, Astron. J., 124:2305-2321 (2002).

Moro-Martin, A. and Malhotra, R., Dynamical models of Kuiper Belt Dust in the inner and outer Solar system, Astron. J., 125:2255-2265 (2003).

Tiscareno, M., and Malhotra, R., The dynamics of known Centaurs, Astron. J., 126:3122-3131 (2003).

Kortenkamp, S.J., Malhotra, R., and Michtchenko, T., Survival of Trojan-Type Companions of Neptune During Primordial Planet Migration, Icarus, 167:347-359 (2004).

Michtchenko, T., and Malhotra, R., Secular Dynamics of the Three-Body Problem: Application to the upsilon Andromedae Planetary System, Icarus, 168:237-248 (2004).

Meyer, M., et al, The formation and evolution of planetary systems:First results from a Spitzer Legacy Science Program, ApJS, in press (2004).

Bernstein, G.M., D.E. Trilling, R.L. Allen, M.E. Brown, M. Holman, R. Malhotra, The Size Distribution of Trans-Neptunian Bodies, AJ, in press (2004).

Ito, T., and Malhotra, R., Dynamical evolution of asteroid fragments originating near the the nu_6 resonance, Icarus, submitted (2004).

Yoshida, F., et al, Photometric observation of a very young family-member asteroid (832) Karin, Publ. Soc. Astron. Japan, submitted (2004).

Moro-Martin, A. and Malhotra, R., Dust outflows from planetary systems, ApJ, submitted (2004).

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