The extremely metal-poor regime for DLAs is yet to be thoroughly explored with high-resolution and high signal-to-noise spectra—who knows what may lurk there!
We speculate that the gas in this DLA may be the ‘missing link’ between the yields of Population III stars, and their later incorporation in the CEMP1-no class of carbon-enhanced metal-poor stars. We note, however, that the carbon-enhancement in some CEMP-no stars could also be produced by other means. Long term radial velocity monitoring of CEMP-no stars will conﬁrm or deny their association with a now extinct companion
Powered by mwForum 2.15.0 © 1999-2008 Markus Wichitill