Volume 394, Number 1, October IV 2002
|Page(s)||339 - 343|
|Section||Numerical methods and codes|
|Published online||04 October 2002|
Adaptive optics observations of asteroid (216) Kleopatra*
IMCCE, UMR CNRS 8028, Paris Observatory, 77 Av. Denfert Rochereau, 75014 Paris, France
2 CFAO/University of California, Dept. of Astronomy, 601 Campbell Hall, Berkeley, CA 94720, USA
3 ONERA, DOTA-E, BP 72, 92322 Châtillon, France
Corresponding author: D. Hestroffer, email@example.com
Accepted: 11 July 2002
The large main-belt asteroid (216) Kleopatra has been for long suspected to be a binary object, mainly due to its large lightcurve amplitude. However, recent observations suggest that it is a single “bone-shaped” or bi-lobated body (Ostro et al. [CITE]; Tanga et al. [CITE]). We present results obtained from ground-based adaptive optics observations, and in agreement with the radar raw-observations, the images show two prominent lobes. Making use of the MISTRAL deconvolution technique, the restored images yield a well-separated binary object. Nevertheless, the spatial resolution of the 3.6 m ESO telescope is limited and a dumbbell-shaped body could yield similar features. Further simulations show that adaptive optics observations with an 8-meter class telescope analyzed with the powerful MISTRAL deconvolution technique could overcome this limitation.
Key words: instrumentation: adaptive optics / minor planets, asteroids
© ESO, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.