Re: OT: Webb shows dark matter theory as false?

On 13/11/2024 05:19, Jan Panteltje wrote:

Astronomers' theory of how galaxies formed may be upended
New research questions standard model
  https://www.sciencedaily.com/releases/2024/11/241112123028.htm
Source:
  Case Western Reserve University
Summary:
  The standard model for how galaxies formed in the early universe predicted
  that the James Webb Space Telescope (JWST) would see dim signals from small,
  primitive galaxies.
  But data are not confirming the popular hypothesis that invisible dark matter
  helped the earliest stars and galaxies clump together.

The CDM theory still isn't beaten yet.
Although MOND might appear superficially better on these selected data there is an element of cherry picking going on.
It remains to be seen if fainter galaxies even further back are more as CDM predicts. This stuff is right at the limits of detection for the WST so it wouldn't surprise me if the brightest stuff is quite obvious and more common than was expected whilst the faintest smaller objects though more numerous are much harder to see.
Several new faint objects in the deep Hubble field have been missed until very recently. There is a nasty and complex sampling interaction between Lyman alpha emission being redshifted to a wavelength we can detect which makes seeing things at this sort of redshift rather tricky.
https://www.space.com/38925-never-before-seen-galaxies-hubble-ultra-deep-field.html
I expect the same issue will affect WST in almost the same way.
--
Martin Brown