Binary asteroid population. 3. Secondary rotations and elongations

Petr Pravec,P Scheirich,Peter Kusnirak,Kamil Hornoch,Adrian Galad,Shantanu Naidu,Donald P Pray,Jozef Vilagi,Stefan Gajdos,Leonard Kornos,Yu N Krugly, W R Cooney,John D Gross,Dirk Terrell,Ninel M Gaftonyuk,Jennifer S Pollock,Marek Husarik,V G Chiorny,Robert D Stephens,Russell I Durkee,Vivek Y Reddy, Ron Dyvig, J Vrastil, J žižka,S Mottola,S Hellmich,Julian Oey,Vladimir Benishek,A Kryszczynska,David J Higgins,Judit Gyorgyey Ries,Franck Marchis,Minjin Baek, Bennie E Macomber,R Inasaridze, O Kvaratskhelia, V Ayvazian,Vladimir V Rumyantsev,Giulia De Masi,F Colas,J Lecacheux, R Montaigut,Adam K Leroy,P J N Brown,Z Krzeminski,Igor Molotov,Daniel E Reichart,Joshua B Haislip,Aaron Patrick Lacluyze

Icarus（2016）

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摘要

•Data on rotations of 46 binary and triple asteroid systems were collected.•An anti-correlation of secondary synchroneity with orbital eccentricity observed.•Libration angles of synchronous secondaries are less than 20° on most epochs.•A paucity of chaotic rotations among asynchronous secondaries is apparent.•An upper limit on the secondary equatorial axis ratios of 1.5 was found.

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关键词

Asteroids, rotation,Asteroids, dynamics,Near-Earth objects,Photometry

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