We
have to show that, for
the 21.1-cm line so
much used by radio astronomers, a
Doppler frequency shift in kHz can
be converted into a radial velocity in
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Solution: Click For PDF Version Frequency of the 21.1 cm line is
and the
magnitude of the longitudinal Doppler frequency shift for a source
moving with radial velocity
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by multiplying by
0.211 provided that
.
,