Physics – Nuclear Physics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007pimo.conf..146l&link_type=abstract
Proceedings of the International Meteor Conference, Roden, The Netherlands, 14-17 September, 2006 Eds.: Bettonvil, F., Kac, J. I
Physics
Nuclear Physics
Scientific paper
The discovery of microscopic grains of stellar origin in primitive meteorites has opened a new field of astrophysics where scientists from different disciplines, astronomy, astrophysics, nuclear physics, chemistry and mineralogy, are required to work together. In this inter-disciplinary field information on the composition of stars is obtained through laboratory analysis of meteoritic rocks. 1 introduce the concept of stellar grains, explain how they travelled to our laboratories, and review the main characteristics of the different types of grains recovered so far. The vast majority of these grains have originated in red giant and Asymptotic Giant Branch (AGB) stars, while a small fraction of them have come from supernova and nova explosions. High-precision laboratory measurement s of the isotopic composition of this stardust represent a very detailed record of the composition of their astrophysical site of origin, and thus a major constraint for theoretical stellar models.
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