The discussion centers on the implications of non-uniform expansion of the Universe on the Hubble Law. Research indicates that different regions of the Universe experience varying velocities, leading to deviations from the standard Hubble flow, known as "peculiar velocities." This suggests that if the extragalactic distance scale were to change, the Hubble constant would also change. Such deviations are significant but would necessitate distance scales larger than currently observable.
PREREQUISITESAstronomers, cosmologists, and physics students interested in the dynamics of the Universe and the implications of non-uniform expansion on cosmological measurements.
Yes to both, though large deviations would require distance scales larger than anything we can observe.Huej said:If the Universe were not expanding uniformly (i.e., at the same rate in all places), then would different places would see a different Hubble law than we do? And if If the extragalactic distance scale changed, would the Hubble constant change?