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Red shift - Doppler, gravity, Compton ?



 
 
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Old January 26th 07, 05:06 PM posted to sci.astro.amateur
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Default Red shift - Doppler, gravity, Compton ?

How can an astronomer know the difference between light that's red
shifted due to Doppler, as opposed to light red shifted due to gravity,
Compton effect, etc..., ?

Errol
pasnola

 




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