Trojan, Hilda, and Cybele asteroids - New lightcurve observations and analysis

Details Trojan, Hilda, and Cybele asteroids - New lightcurve observations and analysis Trojan, Hilda, and Cybele asteroids - New lightcurve observations and analysis

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...95..222b&link_type=abstract

Icarus (ISSN 0019-1035), vol. 95, Feb. 1992, p. 222-238.

Physics

27

Asteroids, Light Curve, Bias, Electrophotometry, Nocturnal Variations

Scientific paper

Lightcurve observations of 23 Trojan, Hilda, and Cybele asteroids are presently subjected to a correction procedure for multiple-aspect lightcurves, followed by a quantitative, bias-corrected analysis of lightcurve amplitude distributions for all published data on these asteroids. While the largest Trojans are found to have a higher mean-lightcurve amplitude than their low-albedo, main-belt counterparts, the smaller Trojans and all Hildas and Cybeles display lightcurve properties resembling main-belt objects. Only the largest Trojans have retained their initial forms after subsequent collisional evolution; 90 km may accordingly represent a transitional magnitude between primordial objects and collision fragments.

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