Detection of Enhanced Germanium in a New Cool Extreme Helium Star A980: Insights and Implications

A fine abundance analysis of a recently discovered hydrogen-deficient carbon (HdC) star, A980, is presented. Based on the observed high-resolution optical spectrum, we ascertain that A980 is a cool extreme helium (EHe) star and not an HdC star. Singly ionized germanium Ge ii lines are identified in...

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Bibliographic Details
Main Authors: Ajay Kumar Saini, Gajendra Pandey
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal
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Online Access:https://doi.org/10.3847/1538-4357/ada1c2
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