NDLI: CHEMICAL ENRICHMENT IN THE CARBON-ENHANCED DAMPED Lyα SYSTEM BY POPULATION III SUPERNOVAE

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CHEMICAL ENRICHMENT IN THE CARBON-ENHANCED DAMPED Lyα SYSTEM BY POPULATION III SUPERNOVAE

Content Provider	Scilit
Author	Kobayashi, Chiaki Tominaga, Nozomu Nomoto, Ken'ichi
Copyright Year	2011
Description	Journal: The Astrophysical Journal Letters We show that the recently observed elemental abundance pattern of the carbon-rich metal-poor Damped Lyman $alpha$ (DLA) system is in excellent agreement with the nucleosynthesis yields of faint core-collapse supernovae of primordial stars. The observed abundance pattern is not consistent with the nucleosynthesis yields of pair-instability supernovae. The DLA abundance pattern is very similar to that of carbon-rich extremely metal-poor (EMP) stars, and the contributions from low-mass stars and/or binary effects should be very small in DLAs. This suggests that chemical enrichment by the first stars in the first galaxies is driven by core-collapse supernovae from $sim 20-50 M_odot$ stars, and also supports the supernova scenario as the enrichment source of EMP stars in the Milky Way Galaxy.
Related Links	https://iopscience.iop.org/article/10.1088/2041-8205/730/2/L14/pdf
ISSN	20418205
DOI	10.1088/2041-8205/730/2/l14
Journal	The Astrophysical Journal Letters
Issue Number	2
Volume Number	730
Language	English
Publisher	IOP Publishing
Publisher Date	2011-03-03
Access Restriction	Open
Subject Keyword	Journal: The Astrophysical Journal Letters Astronomy and Astrophysics Milky Way
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

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