I went to a lecture yesterday given by Prof Bernard Pagel on neutrinos and we briefly touched on young galaxies, notable 1 Zwicky 47 which is around 500 million years old and he remarked that the metallicity of the stars were pretty much zero - I briefly discussed with him that I cannot accept that there were huge blobs of primordial matter, from the Big Bang, that was still unseeded by elements higher than Li. He agreed that this was a mystery and that maybe there was some other answers, like all that we see are very large, very old white stars mixed in with small amounts of 2nd & 3rd gen stars.

I cannot see how a large and very old white star could remain on the HR diagram without long ago supernovaing or cooling to form neutron stars or whatever....

 

Any ideas? Because he sure didn't!

well, this must be a veryunpopular topic or question! No responses at all!

Yup, still no input!

...and I thought you chaps had some answers.....!

Who knows, maybe it was a large gas cloud that just recently condensed and started forming stars.

Well, it could be evidence in favour of Steady State and against the Big Bang. That would completely remove any problem with the low metallicity.

...good answer!