Abstract
THE orbits of comets and near-Earth asteroids evolve chaotically, mainly in response to the gravitational influence of the planets. For comets, it is known that such perturbations can result in trajectories that either collide with or graze the Sun1–3. Indeed, it has been calculated3 that 6% of the known short-period comets (including comet Encke) will become Sun-grazers on a timescale of ~105 years. But there has been no previous indication that asteroids may suffer a similar fate. To address this question, we have integrated numerically the orbits of several near-Earth asteroids. We find that these asteroids can also undergo solar collisions, through several dynamical routes involving orbital resonances with the giant planets, on timescales of the order of 106 years. Of the 47 objects studied, we found 19 cases in which the asteroid collided with the Sun, implying that solar collisions are a more common fate than planetary collisions or ejection from the Solar System. Past Sun-grazing events may also have been recorded in the surface composition and spectral properties of some existing near-Earth asteroids.
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References
Marsden, B. G. in Asteroids Comets Meteors III (eds Lagerkvist, C.-l., Rickman, H., Lindblad, B. A. & Lindgren, M.) 393–404 (Uppsala University, 1990).
Bailey, M. E., Chambers, J. E. & Hahn, G. Astr. Astrophys. 257, 315–322 (1992).
Levison, H. F. & Duncan, M. J. Icarus 108, 18–36 (1994).
Morbidelli, A. Icarus 105, 48–66 (1993).
Knez̆ević, Z., Milani, A., Farinella, P., Froeschlé, Ch. & Froeschlé, C. Icarus 93, 316–330 (1991).
Scholl, H., Froeschlé, Ch., Kinoshita, H., Yoshikawa, M. & Williams, J. G. in Asteroids II (eds Binzel, R. P., Gehrels, T. & Matthews, M. S.) 845–861 (Univ. of Arizona Press, 1989).
Farinella, P., Gonczi, R., Froeschlé, Ch. & Froeschlé, C. Icarus 101, 174–187 (1993).
Morbidelli, A., Gonczi, R., Froeschlé, Ch. & Farinella, P. Astr. Astrophys. 282, 955–979 (1994).
Steel, D. I., Asher, D. J. & Clube, S. V. M. Mon. Not. R. astr. Soc. 251, 632–648 (1991).
Asher, D. J., Clube, S. V. M. & Steel, D. I. Mon. Not. R. astr. Soc. 264, 93–105 (1993).
Stoer, J. & Burlisch, R. Introduction to Numerical Analysis (Springer, New York, 1980).
Everhart, E. in Dynamics of Comets: Their Origin and Evolution (eds Carusi, A. & Valsecchi, G. B.) 185–202 (Reidel, Dordrecht, 1985).
Milani, A., Carpino, M. & Marzari, F. Icarus 88, 292–335 (1990).
Bottke, W. F. Jr, Nolan, M. C., Greenberg, C. R. & Kolvoord, R. A. in Hazards Due to Comets and Asteroids (Univ. Arizona Press, in the press).
Wetherill, G. W. Icarus 37, 96–112 (1979).
Cruikshank, D. P., Tholen, D. J., Hartmann, W. K., Bell, J. F. & Brown, R. H. Icarus 89, 1–13 (1991).
Kozai, Y. Astr. J. 67, 591–598 (1962).
Morbidelli, A. & Moons, M. Icarus 102, 316–332 (1993).
Moons, M. & Morbidelli, A. Icarus (in the press).
Yoshikawa, M. Celest. Mech. 54, 287–290 (1992).
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Farinella, P., Froeschlé, C., Froeschlé, C. et al. Asteroids falling into the Sun. Nature 371, 314–317 (1994). https://doi.org/10.1038/371314a0
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DOI: https://doi.org/10.1038/371314a0
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