Comet nuclei and Trojan asteroids - A new link and a possible mechanism for comet splittings

Details Comet nuclei and Trojan asteroids - A new link and a possible mechanism for comet splittings Comet nuclei and Trojan asteroids - A new link and a possible mechanism for comet splittings

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...86..448h&link_type=abstract

Icarus (ISSN 0019-1035), vol. 86, Aug. 1990, p. 448-454.

Astronomy and Astrophysics

Astronomy

16

Asteroid Belts, Comet Nuclei, Light Curve, Protoplanets, Asteroids, Astronomical Models, Celestial Bodies, Near Infrared Radiation

Scientific paper

Relatively elongated shapes, implied by recent evidence of a greater incidence of high amplitude lightcurves for comet nuclei and Trojan asteroids than for similarly scaled main belt asteroids, are suggested to have evolved among comet nuclei and Trojans due to volatile loss. It is further suggested that such an evolutionary course may account for observed comet splitting; rotational splitting may specifically occur as a result of evolution in the direction of an elongated shape through sublimation. Supporting these hypotheses, the few m/sec separation velocities projected for rotationally splitting elongated nuclei are precisely in the observed range.

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