Can a galaxy at z=8.68 disprove the LCDM theory?

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SUMMARY

The discussion centers on the galaxy EGSY8p7, which has a redshift of z=8.68, and its implications for the Lambda Cold Dark Matter (LCDM) theory. Participants debate whether the formation of galaxy-like structures within 570 million years post-Big Bang is feasible, given that the Cosmic Microwave Background (CMB) was emitted at a redshift of 1100. The conversation highlights the challenges in observing early galaxies and questions the sufficiency of time for galaxy formation in the context of LCDM.

PREREQUISITES
  • Understanding of redshift and its significance in cosmology
  • Familiarity with the Lambda Cold Dark Matter (LCDM) model
  • Knowledge of the Cosmic Microwave Background (CMB) and its implications
  • Basic concepts of galaxy formation and evolution
NEXT STEPS
  • Research the implications of redshift on galaxy formation timelines
  • Study the Lambda Cold Dark Matter (LCDM) model in detail
  • Examine observational techniques for detecting early galaxies
  • Explore the significance of the Cosmic Microwave Background (CMB) in cosmological theories
USEFUL FOR

Astronomers, cosmologists, and astrophysics students interested in the early universe and the validity of the LCDM theory.

wolram
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We see from wikipidea that
EGSY8p7 z=8.68 13.2 is only a fraction away from the time of the BIG EVENT how close will a galaxy be to disprove the LCDM.
 
Space news on Phys.org
The CMB got emitted at a redshift of 1100. Clumps of matter formed quite early afterwards, those galaxies are just hard to observe. Where is the problem? Do you have a proof that 570 million years are not sufficient to form something galaxy-like?
 

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