Cosmic "Dark Ages"

Nimblebrain Forums - Not logged in

Forum Help Search Chat Register Login

Topic Cosmology / Alternative Cosmology / Cosmic "Dark Ages" (2219 hits)

By Mike Petersen Date 2011-01-05 23:23 Edited 2011-01-05 23:25

Okay guys, here I am again with a reference...comments welcome to start a discussion.

Cosmic Dark Ages

Regards,
Mike

By Jade Annand Date 2011-01-25 06:16

Hi, Mike!

A bit chock full of the 'standard boilerplate', isn't it?

The preprint of the paper is here.

Looks fairly preliminary; they are expecting to find many more of these instances to 'bridge the gap'. A couple of key quotes:

The paper said:

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!

The paper said:

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

(¹CEMP: carbon-enhanced, metal-poor)

So, much to be determined.

I'm waiting and hoping the Webb will be able to see into the putative 'dark ages', myself.

Topic Cosmology / Alternative Cosmology / Cosmic "Dark Ages" (2219 hits)