Accelerated expansion and lightcurves

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SUMMARY

The discussion centers on the relationship between time dilation associated with cosmological redshift and the accelerated expansion of the universe as observed in Type Ia supernovae since 1998. Participants question whether the photometric slowing of supernova lightcurves is directly linked to this accelerated expansion. The conversation also references the Pound-Rebka experiment, which verified gravitational time dilation, indicating a distinction between gravitational and cosmological effects on light.

PREREQUISITES
  • Understanding of cosmological redshift
  • Familiarity with Type Ia supernovae
  • Knowledge of time dilation concepts
  • Awareness of the Pound-Rebka experiment
NEXT STEPS
  • Research the implications of cosmological redshift on supernova observations
  • Study the principles of time dilation in both gravitational and cosmological contexts
  • Explore the methodology and findings of the Pound-Rebka experiment
  • Investigate the role of Type Ia supernovae in measuring cosmic expansion
USEFUL FOR

Astronomers, astrophysicists, and students of cosmology interested in the dynamics of supernovae and the expansion of the universe.

TrickyDicky
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Is the time dilation associated to cosmological redshift that can be seen as a photometric slowing of the SNe Ia lightcurves directly related to the accelerated expansion seen on these same type of supernova from 1998? If not, what's the difference?

Thanks
 
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nobody here heard of the time dilation test? or lightcurves?
 
What time dilation are you referring to , I know they tested the gravitational red-shift of light , with the pound-Rebka experiment and verified gravitational time dilation
 

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