Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dps....39.3302b&link_type=abstract
American Astronomical Society, DPS meeting #39, #33.02; Bulletin of the American Astronomical Society, Vol. 39, p.476
Astronomy and Astrophysics
Astronomy
Scientific paper
We have conducted a radar-driven observational campaign of main-belt asteroids (MBAs) focused on X/M class asteroids using the Arecibo radar and NASA Infrared Telescope Facilities (IRTF). Our objectives are to (a) determine if there are any consistent relationships between spectra in the near-infrared wavelengths and radar signatures and (b) look for rotationally resolved relationships between asteroid radar properties and infrared spectral properties. This paper describes preliminary results of an ongoing survey of infrared observations of M-type asteroids and radar observations. In the analysis of 16 asteroid near-infrared spectra and nine radar measurements, we find a trend indicating a correlation between continuum slope (from 1.7 to 2.45 μm) and radar albedo - an asteroid with a steep continuum slope also has a bright radar albedo, which suggests a significant metal content. This may provide a means to use IR observations to predict the most likely metallic candidates for radar studies.
Bell Maureen
Binzel Richard P.
Bus Schelte J.
Clark Beth Ellen
DeMeo Francesca E.
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