An Even More Precise View of Aluminum-26 in the Solar Nebula

Details An Even More Precise View of Aluminum-26 in the Solar Nebula An Even More Precise View of Aluminum-26 in the Solar Nebula

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009psrd.repte.140t&link_type=abstract

Planetary Science Research Discoveries

Physics

Chronometer, Solar System, Aluminum-26, Aluminum 26, Isotope, Chondrule

Scientific paper

Aluminum-26, a short-lived isotope with a half-life of only 730,000 years, is a potentially valuable chronometer to use to date events as the Solar System was forming. To be useful as a dating tool however, it must be distributed uniformly throughout the Solar System. Johan Villeneuve, Marc Chaussidon, and Guy Libourel (Nancy Universite, Nancy, France) have made high precision analyses of aluminum and magnesium isotopes using an ion microprobe. Consistent with previous results, they find that aluminum-26 was indeed distributed uniformly throughout at least the inner Solar System. Combining published and new data, they show that the rate at which chondrules formed might have varied.

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