Deuterated Polycyclic Aromatic Hydrocarbons in the Interstellar Medium: The Aliphatic C–D Band Strengths

Deuterium (D) was exclusively generated in the Big Bang, and the standard Big Bang nucleosynthesis (BBN) model predicts a primordial abundance of D/H ≈ 26 parts per million (ppm). As the Galaxy evolves, D/H gradually decreases because of astration. The Galactic chemical evolution (GCE) model predict...

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Bibliografiska uppgifter
Huvudupphovsmän: X. J. Yang, Aigen Li
Materialtyp: Artikel
Språk:English
Publicerad: IOP Publishing 2023-01-01
Serie:The Astrophysical Journal Supplement Series
Ämnen:
Länkar:https://doi.org/10.3847/1538-4365/ace4c6