Nitrogen Abundances in Damped Ly-alpha Absorbers

Tayyaba Zafar,Miriam Centurion,Paolo Molaro,Celine Peroux,Valentina Dodorico,Giovanni Vladilo

arXiv (Cornell University)（2014）

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摘要

Nitrogen is thought to have both primary and secondary origins depending on whether the seed carbon and oxygen are produced by the star itself (primary) or already present in the interstellar medium (secondary) from which star forms. DLA and sub-DLA systems with typical metallicities of -3.0更多

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nitrogen,ly-alpha

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