Static Universe Theroy and Red shifts in galaxy spectra

[samaank]

Hi, i have a question, if we imaging that the universe is static and not expanding, what observation would be made in regards to red shifts in galaxy spectra?

 

[lightgrav]

If this is acollege astronomy class question,
you're supposed to tell us what YOU have thought already,
before we tell you what WE think.

If it's NOT a college astronomy question,
go to the astronomy forum. Be sure to read
the "wrong ideas" post there.

 

[quicknote]

If the universe is truly static and not expanding, then we would not observe any red shifts in galaxy spectra. Red shifts in spectra are caused by the Doppler effect, which is a result of the expansion of the universe. As galaxies move away from us due to the expansion, the light they emit is stretched to longer wavelengths, resulting in a red shift. If the universe is not expanding, then there would be no movement of galaxies and therefore no red shifts in their spectra. This would also mean that the universe is not expanding and the concept of the Big Bang would not be supported. However, the overwhelming evidence from various observations, such as the cosmic microwave background radiation and the large-scale structure of the universe, strongly support the idea of an expanding universe. Therefore, the static universe theory is not widely accepted in the scientific community.