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Search for satellites near (21) Lutetia using OSIRIS/Rosetta images

Bertini, Ivano; Sabolo, Walter; Gutierrez, Pedro J.; Marzari, Francesco; Snodgrass, Colin; Tubiana, Cecilia; Moissl, Richard; Pajola, Maurizio; Lowry, Stephen C.; Barbieri, Cesare; Ferri, Francesca; Davidsson, Björn and Sierks, Holger (2012). Search for satellites near (21) Lutetia using OSIRIS/Rosetta images. Planetary And Space Science, 66(1) pp. 64–70.

DOI (Digital Object Identifier) Link: https://doi.org/10.1016/j.pss.2011.12.022
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Abstract

On 2010 July 10 the ESA Rosetta mission flew by the large asteroid (21) Lutetia. One of the scientific goals of the onboard OSIRIS instrument was the search for satellites of the asteroid, with more than 20 images specifically dedicated to this topic. An observational campaign was devised with a selection of filters and exposure times tailored to maximize the possibility of detecting small companions and determining their bound orbits. Data were analyzed with suitable methods to remove cosmic ray hits and known background objects, in order to search for persistent detections of potential interesting flux sources. We found no unambiguous detections of a satellite larger than View the MathML source inside the entire sphere of gravitational influence. Our search confirmed the absence of bound companions larger than View the MathML source inside 20 primary radii. These limits are a factor of ∼30 smaller than the values reported so far from large ground-based telescopes using adaptive optics and from the Hubble Space Telescope.

Item Type: Journal Item
Copyright Holders: 2011 Elsevier Ltd.
ISSN: 0032-0633
Extra Information: Rosetta Fly-by at Asteroid (21) Lutetia
Keywords: minor bodies; asteroid satellites; Lutetia; Rosetta; OSIRIS
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Space
Item ID: 43067
Depositing User: Colin Snodgrass
Date Deposited: 05 Jun 2015 09:23
Last Modified: 07 Dec 2018 10:31
URI: http://oro.open.ac.uk/id/eprint/43067
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