Sunday, June 14, 2015

cosmology - what is the radial extent of the last scattering "shell"?


At CMB recombination (z=1090), what is the radial extent of the last scattering "shell"? a) Delta(z) = .... b) Delta(comoving angular distance)= ....Mpc



The WMAP first-year parameters give Delta(z) = 195. Is this still correct?




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