Undergrad Gravitational Field with Dark Energy: Observable Effects?

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SUMMARY

The discussion centers on the gravitational field influenced by dark energy, specifically the cosmological constant (cc) and its effects on matter. It is established that the cc can be incorporated into the Schwarzschild solution, resulting in Schwarzschild-de Sitter spacetime. However, the minuscule size of the cosmological constant renders it undetectable at solar system scales. The conversation also clarifies the distinction between dark matter and dark energy, emphasizing that dark energy is significant only on cosmological scales, where Modified Newtonian Dynamics (MOND) is inapplicable.

PREREQUISITES
  • Understanding of general relativity and curvature due to energy
  • Familiarity with the cosmological constant and its implications
  • Knowledge of Schwarzschild solution and Schwarzschild-de Sitter spacetime
  • Distinction between dark matter and dark energy
NEXT STEPS
  • Research the implications of the cosmological constant in cosmology
  • Study the Schwarzschild-de Sitter solution in detail
  • Explore the differences between dark matter and dark energy
  • Investigate observable effects of dark energy on large-scale structures
USEFUL FOR

Astronomers, physicists, and cosmologists interested in gravitational effects of dark energy and the dynamics of the universe.

kodama
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TL;DR
how to calculate gravitational field with dark energy
since the cosmological constant observed is that there is a small amount of energy in empty space, and in general relativity anytime there is energy there is curvature and therefore gravity, how to calculate gravitational field with dark energy and does it have any observable effects on matter?

the cc is on the same order as mond ao so I wonder if somehow ao is the result of the gravity of dark energy acting on matter
 
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kodama said:
how to calculate gravitational field with dark energy and does it have any observable effects on matter?
You can easily add a cosmological constant term to the Schwarzschild solution - the result is Schwarzschild-de Sitter spacetime. However, in reality the term is so tiny that you could never hope to detect effects on the solar system scale.
kodama said:
the cc is on the same order as mond
Are you mixing up dark matter and dark energy? Dark matter and MOND are competing theories. Dark energy is only relevant on much larger scales where MOND doesn't work at all.
 

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