Searching for Main Belt Comets with the CFHT Legacy Survey

Details Searching for Main Belt Comets with the CFHT Legacy Survey Searching for Main Belt Comets with the CFHT Legacy Survey

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dps....39.5408m&link_type=abstract

American Astronomical Society, DPS meeting #39, #54.08; Bulletin of the American Astronomical Society, Vol. 39, p.525

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Scientific paper

Asteroids and comets have very different distributions within our Solar System. However, they almost certainly form a continuum, with compositions from the very rocky to the very icy. Curiously, transitional objects (those which are not easily classified as one or the other) are rare and the link between the two primeval populations has received very little attention. Wiegert et al. (2007) have used the Canada-France-Hawaii Telescope (CFHT) Legacy Survey data from MegaPrime to find over 1000 asteroids in the Main-Belt. We can measure their Full Width Half Maximum (FWHM) perpendicular to the direction of motion and compare it to FWHM of nearby stars of the same magnitude. With this information, we can determine whether an object shows any evidence of gas or dust production, indicating cometary activity. We present the preliminary results of this study, which is aimed at understanding the big picture of cometary evolution.

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