Interstellar Residence Times of Presolar SiC Dust Grains From the Murchison Carbonaceous Meteorite
Heck, Philipp R.; Gyngard, Frank; Ott, Ulrich; Meier, Matthias M.M.; Avila, Janaina; Amari, Sachiko; Zinner, Ernst; Lewis, Roy S; Baur, Heinrich; Wieler, Rainer
Description
The time span between the formation of presolar grains in stellar outflows and their incorporation into early solar-system solids is poorly constrained. Knowledge of this time span is essential for a better understanding of the processing of grains in the interstellar medium (ISM) and formation processes of the solar system. Here, we report interstellar residence times of 3-1100 Myr for large (5-50 μm) presolar SiC grains, based on their content of He and Ne produced by Galactic cosmic rays. A...[Show more]
Collections | ANU Research Publications |
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Date published: | 2009 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/38689 |
Source: | Astrophysical Journal, The |
DOI: | 10.1088/0004-637X/698/2/1155 |
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01_Heck_Interstellar_Residence_Times_2009.pdf | 424.5 kB | Adobe PDF | Request a copy |
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