SIMBAD references

2011ApJ...730L..14K - Astrophys. J., 730, L14 (2011/April-1)

Chemical enrichment in the carbon-enhanced damped Lyα system by population III supernovae.


Abstract (from CDS):

We show that the recently observed elemental abundance pattern of the carbon-rich metal-poor damped Lyα (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 ∼20 to 50 M stars and also supports the supernova scenario as the enrichment source of EMP stars in the Milky Way Galaxy.

Abstract Copyright:

Journal keyword(s): galaxies: abundances - galaxies: evolution - quasars: absorption lines - stars: abundances - stars: Population III - supernovae: general

Simbad objects: 5

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