Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21340105s&link_type=abstract
American Astronomical Society, AAS Meeting #213, #401.05; Bulletin of the American Astronomical Society, Vol. 41, p.189
Astronomy and Astrophysics
Astronomy
Scientific paper
We present visible and near-IR images of main-belt asteroids 45 Eugenia, 87 Sylvia, and 107 Camilla. These images show not only the primary object but also companion objects (satellites). We present reconstructions of these images and photometric information on the relative reflectance of the companions and the primaries. While the companions of 45 Eugenia and 107 Camilla are noticeably redder than the main body in the visible region, the companion of 87 Sylvia has the same color as the primary. We hypothesize that a red color difference may be due to the companion having an older surface than the primary object. This implies that 45 Eugenia and 107 Camilla have been resurfaced more recently than their companions.
We extend the work of Storrs et al. (2002) with improved data reduction techniques.
References:
Storrs, A.D., et al. (2002): "Imaging Asteroidal Companions with the Hubble Space Telescope (HST)", BAAS vol. 34 no. 3, p. 861 (abs #14.17)
Davis Martin
Makhoul K.
Richmond Michael
Storrs Alex
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