Universe be determined by some average per volume temperature ?

Click For Summary
SUMMARY

The size of the observable universe is fundamentally linked to the average energy density of its components, including dark energy and dark matter. This relationship indicates that the universe's dimensions are influenced by the energy densities present before cosmic inflation. However, the discussion raises questions about whether the overall size of the universe can be solely determined by these factors, suggesting a more complex interplay of cosmological elements.

PREREQUISITES
  • Understanding of cosmological models, specifically dark energy and dark matter.
  • Familiarity with concepts of energy density in physics.
  • Knowledge of cosmic inflation and its implications on the universe's structure.
  • Basic grasp of observable versus entire universe distinctions.
NEXT STEPS
  • Research the role of dark energy in cosmic expansion.
  • Explore the implications of cosmic inflation on the observable universe.
  • Study the relationship between energy density and the universe's size.
  • Investigate current theories on the overall structure of the universe.
USEFUL FOR

Astronomers, cosmologists, and physics enthusiasts interested in the fundamental principles governing the universe's size and structure.

wolram
Gold Member
Dearly Missed
Messages
4,411
Reaction score
551
Could the size of our universe be determined by some average per volume temperature ?
 
Astronomy news on Phys.org
wolram said:
Could the size of our universe be determined by some average per volume temperature ?

The size of our observable universe is a result of the average energy density of the various components of the cosmological model (dark energy, dark matter, etc.), so it's true in that sense. Likewise, the size of the region that was at one point in causal contact would have been dependent on the energy densities prior to inflation. I don't immediately see, however, why the size of the entire universe would be given by this.
 

Similar threads

  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 12 ·
Replies
12
Views
4K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 12 ·
Replies
12
Views
1K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 22 ·
Replies
22
Views
2K
  • · Replies 7 ·
Replies
7
Views
3K