Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.6803w&link_type=abstract
American Astronomical Society, DPS meeting #38, #68.03; Bulletin of the American Astronomical Society, Vol. 38, p.621
Astronomy and Astrophysics
Astronomy
Scientific paper
Space weathering research has the potential to improve asteroid age determination through spectral analysis. Until recently the main method of determining asteroid age has been through dispersion in orbital space of asteroid family members. The spectral approach provides an independent means of measuring ages which could confirm the dynamical method, make overall age estimates more precise, and provide ages when the dynamical method is impractical. Although there are numerous families aged 10's to 100's of Myr, there are only a few under 10 Myr. The Iannini family is currently the youngest known at 3 Myr determined dynamically. Continuum spectra of this family's members allow anchoring the young end of the age-color relationship. Spectra of Iannini family members have been taken with Keck II/ESI and their types and slopes will be discussed. Accurate ages for families originating across the main belt will elucidate the disk-to-planets transition.
Jedicke Robert
Willman Mark
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