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Germanium Production in Asymptotic Giant Branch Stars: Implications for Observations of Planetary Nebulae

Karakas, Amanda; Lugaro, Maria Anna; Gallino, Roberto

Description

Observations of planetary nebulae (PNe) in the work of Sterling, Dinerstein, & Bowers have revealed abundances in the neutron-capture element germanium (Ge) from solar to factors of 3-10 above solar. The enhanced Ge is an indication that the slow neutron-capture process (the s-process) operated in the parent star during the thermally pulsing asymptotic giant branch (TP-AGB) phase. We compute the detailed nucleosynthesis of a series of AGB models to estimate the surface enrichment of Ge near the...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
URI: http://hdl.handle.net/1885/60319
Source: Astrophysical Journal, The
DOI: 10.1086/512676

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