TitleA spectroscopic study of the motions in Messier 33
AuthorsBrandt, F. C.
AbstractRadial velocity measurements of Ha from the emission knots in M33 have been used to establish the rotation curve out to 30' from the centre. The radio measurements are used to extend the rotation curve to 6o'. A model is derived from the rotation curve which has a total mass of X 1010 M0 and a mass to blue light ratio of I 5.
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