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Index of Subjects Hi David, to correct a common misrepresentation: The cosmological red shift of light is not due to the source moving away but due to the space expanding. Two very different phenomena. Also, Rayleigh scattering is not changing the wavelength of the scattered light, hence is not contributing to redshift. Burkhard On Sun, Apr 7, 2019 at 8:17 AM David Webster <dwebster@glinx.com> wrote: > > Dear All, but especially astrophysics experts, > > Is the red shift of light, which would be due to the source moving > away at great speed, intrinsically unlike the red shift due to Rayleigh > scattering (which selectively scatters shorter wavelengths; 1/[length to > the fourth power]) ? > > With ample dust in space, ranging from particles to atoms, one > would expect the red shift due to scattering to also be a function of > distance to source. > > Dave Webster, Kentville >
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