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Ken Rice

PROF

Accepting PhD Students

Personal profile

Research Interests

My research interests are in theoretical and computational astrophysics . One focus is the evolution of accretion discs and how this relates to the formation of stars and planets. I am particularly interested in accretion discs that are massive enough for their own self-gravity to play a role in their evolution. I also have an interest in the formation and evolution of planets and planetary systems.  In particular, I am interested in how planets can migrate very close to their parent stars and what happens to such planets when they do end up in these very close orbits.

My research in a nutshell

I currently focus mainly on understanding the formation and evolution of planets and planetary systems.  In particular I am interested in the formation of directly imaged, massive planets that have large orbital radii.  Our current understanding is that such systems are probably rare, and that is starting to become consistent with our theoretical understanding of their formation.  I'm also involved in one of the exoplanet detection programmes which is starting to announce both newly discovered systems, and more detailed information about the properties of some of the recently discovered systems. 

Education/Academic qualification

Doctor of Philosophy (PhD), University of KwaZulu-Natal

Award Date: 1 Apr 1998

Bachelor of Science, University of KwaZulu-Natal

Award Date: 1 May 1991

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Collaborations and top research areas from the last five years

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  • Constraining Small Planet Compositions for Future Missions

    Palethorpe, L., Mortier, A., Egger, J. A., Rice, K., Wilson, T. G., Vanderburg, A., Bonomo, A. S., Boschin, W., Cameron, A. C., Eschen, Y. N. E., Harutyunyan, A., Malavolta, L., Fiorenzano, A. F. M., Sozzetti, A., Stalport, M., Eylen, V. V. & Watson, C. A., 6 Mar 2026, (Accepted/In press) In: Monthly Notices of the Royal Astronomical Society .

    Research output: Contribution to journalArticlepeer-review

    Open Access
  • Gas-depleted planet formation occurred in the four-planet system around the red dwarf LHS 1903

    HARPS-N Collaboration, CHEOPS Consortium & Palethorpe, L., 12 Feb 2026, In: Science (New York, N.Y.). 2026, p. 1-26 26 p., eadl2348.

    Research output: Contribution to journalArticlepeer-review

    Open Access
  • A Decade of Solar High-Fidelity Spectroscopy and Precise Radial Velocities from HARPS-N

    Dumusque, X., Moulla, K. A., Cretignier, M., Buchschacher, N., Segransan, D., Phillips, D. F., Affer, L., Aigrain, S., John, A. A., Bonomo, A. S., Bourrier, V., Buchhave, L. A., Cameron, A. C., Cegla, H. M., Cortes-Zuleta, P., Cosentino, R., Costes, J., Damasso, M., de Beurs, Z. L. & Ehrenreich, D. & 36 others, Ghedina, A., Gonzales, M., Haywood, R. D., Klein, B., Lakeland, B. S., Langellier, N., Latham, D. W., Leleu, A., Lodi, M., Lopez-Morales, M., Lovis, C., Malavolta, L., Maldonado, J., Mantovan, G., Fiorenzano, A. F. M., Micela, G., Milbourne, T., Molinari, E., Mortier, A., Naponiello, L., Nicholson, B. A., O'Sullivan, N. K., Pepe, F., Pinamonti, M., Piotto, G., Rescigno, F., Rice, K., Dimitar, S., Silva, A. M., Sozzetti, A., Stalport, M., Tavella, S., Udry, S., Vanderburg, A., Vissapragada, S. & Watson, C. A., 10 Feb 2026, In: Astronomy and Astrophysics. 706, p. 1-22 22 p., A231.

    Research output: Contribution to journalArticlepeer-review

    Open Access
  • HARPS-N, TESS, and CHEOPS discover a transiting sub-Neptune and two outer companions around the bright solar analogue HD 85426

    Lienhard, F., Mortier, A., Cameron, A. C., Cretignier, M., Borsato, L., John, A. A., Egger, J. A., Stalport, M., Wilson, T. G., Deline, A., Fortier, A., Latham, D. W., Malavolta, L., Maxted, P. F. L., Sousa, S. G., Grimm, S. L., Buchhave, L., Alibert, Y., Lakeland, B. S. & Dumusque, X. & 79 others, Cabrera, J., Naponiello, L., Correia, A. C. M., Rescigno, F., Fossati, L., Sozzetti, A., Alonso, R., Bárczy, T., Barrado, D., Barros, S. C. C., Baumjohann, W., Benz, W., Billot, N., Brandeker, A., Broeg, C., Collins, K., Csizmadia, S., Cubillos, P. E., Davies, M. B., Deleuil, M., Demangeon, O. D. S., Demory, B.-O., Derekas, A., Edwards, B., Ehrenreich, D., Erikson, A., Fridlund, M., Gandolfi, D., Gazeas, K., Gillon, M., Güdel, M., Günther, M. N., Haywood, R., Heitzmann, A., Helling, C., Isaak, K. G., Jenkins, J. M., Kiss, L. L., Korth, J., Lam, K. W. F., Laskar, J., Etangs, A. L. D., Leleu, A., Lendl, M., Magrin, D., Fiorenzano, A. F. M., Merín, B., Mordasini, C., Nascimbeni, V., Olofsson, G., Osborn, H. P., Ottensamer, R., Pagano, I., Palethorpe, L., Pallé, E., Peter, G., Piazza, D., Piotto, G., Pollacco, D., Queloz, D., Ragazzoni, R., Rando, N., Rauer, H., Ribas, I., Rice, K., Santos, N. C., Scandariato, G., Ségransan, D., Simon, A. E., Smith, A. M. S., Sulis, S., Szabó, G. M., Udry, S., Ulmer-Moll, S., Grootel, V. V., Venturini, J., Villaver, E., Walton, N. A. & Zingales, T., 1 Jan 2026, In: Monthly Notices of the Royal Astronomical Society . 545, 3, p. 1-26 26 p., staf1934.

    Research output: Contribution to journalArticlepeer-review

    Open Access
  • The mass of the exo-Venus Gliese 12 b, as revealed by HARPS-N, ESPRESSO, and CARMENES

    Turner, D. A., Eschen, Y. N. E., Murgas, F., Mortier, A., Wilson, T. G., Fernández, J. F., Gromek, N., Morello, G., Tabernero, H. M., Egger, J. A., Vissapragada, S., Caballero, J. A., Dreizler, S., Freckelton, A. V., Hatzes, A. P., Lakeland, B. S., Nagel, E., Naponiello, L., Vanaverbeke, S. & Venner, A. & 43 others, Osorio, M. R. Z., Amado, P. J., Béjar, V. J. S., Bonomo, A. S., Buchhave, L. A., Cameron, A. C., Carleo, I., Chaturvedi, P., Cloutier, R., Damasso, M., Daspute, M., Dholakia, S., Dufoer, S., Dumusque, X., Fiorenzano, A. F. M., Ghedina, A., Harutyunyan, A., Herrero, E., John, A. A., Lillo-Box, J., Lodieu, N., López-Morales, M., Malavolta, L., Mancini, L., Mantovan, G., Montes, D., Morales, J. C., Nicholson, B., Orell-Miquel, J., Palethorpe, L., Palle, E., Quirrenbach, A., Reffert, S., Reiners, A., Ribas, I., Rice, K., Silva, A. M., Sozzetti, A., Stalport, M., Tal-Or, L., Trifonov, T., Udry, S. & Zechmeister, M., 1 Jan 2026, In: Monthly Notices of the Royal Astronomical Society . 545, 1, p. 1-25 25 p.

    Research output: Contribution to journalArticlepeer-review

    Open Access