Other evidences of the Galaxys' Acceleration

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SUMMARY

The discussion centers on the acceleration of the universe, specifically regarding the Doppler effect observed in light emitted by distant galaxies. Participants confirm that while the universe is expanding, the acceleration is not attributed to the Milky Way's deceleration relative to other galaxies. The consensus is that the notion of galaxies accelerating is supported by multiple lines of evidence beyond just the Doppler effect, and the topic has been extensively covered in previous discussions.

PREREQUISITES
  • Doppler effect in astrophysics
  • Understanding of cosmic expansion
  • Familiarity with observational astronomy
  • Basic knowledge of the Milky Way's motion
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  • Research the evidence for cosmic acceleration, including Type Ia supernovae observations
  • Explore the role of dark energy in the expansion of the universe
  • Study the implications of the Cosmic Microwave Background radiation
  • Investigate the effects of gravitational lensing on galaxy observations
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Astronomers, astrophysics students, and anyone interested in understanding the dynamics of cosmic expansion and the evidence supporting the acceleration of the universe.

meTheNaive
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Hello,
According to my understanding, it is thought that the universe is not only expanding, but is also accelerating based on Doppler effect (light emitted by other galaxies have different wavelength.) Are there other evidences as well?
Could not the galaxies acceleration be our observation of the milky way decelerating in a faster rate than other galaxy? (That would still have the same doppler effect as if other galaxies are accelerating.)

Thank you,
 
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This topic is beat absolutely to DEATH here on this forum (and the answer is no). I suggest a forum search.
 

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