Suppose that you have obtained spectra of several galaxies and have measured the observed wavelength of the h-alpha line (rest wavelength = 656.3nm) to be: galaxy 1: 659.4 nm. galaxy 2: 664.1 nm. galaxy 3: 675.7 nm. 10. [4pt] calculate the redshift, z, for each of these galaxies. 11. [4pt] calculate the radial velocity of each of these galaxies. 12. [4pt] assuming a hubble constant of 66.4 km/s/mpc, calculate the distance to each of these galaxies (answer in mpc).
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Suppose that you have obtained spectra of several galaxies and have measured the observed wavelength...
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