Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...383l..19k&link_type=abstract
Astronomy and Astrophysics, v.383, p.L19-L22 (2002)
Astronomy and Astrophysics
Astrophysics
14
Solar System: Minor Planets, Asteroids, Techniques: Photometric, Methods: Numerical
Scientific paper
The imaging of well-observed large asteroids by lightcurve inversion has revealed objects, such as 44 Nysa and 41 Daphne, that are distinctly asymmetric and globally very different from equilibrium-like figures, indicating contact-binary structures. The shape of the Trojan asteroid 624 Hektor is very probably globally bifurcated. Together with the known large binary asteroids 216 Kleopatra, 90 Antiope, and 617 Patroclus, these findings indicate that a nonvanishing portion of large asteroids have binary structures.
Kaasalainen Mikko
Piironen Jukka
Torppa Johanna
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