T depends on R as
The mass density of a spherical galaxy varies as k/r over a large distance ‘r’ from its centre. In that region, a small star is in a circular orbit of radius R. Then the period of revolution, T depends on R as
16
Sep
The mass density of a spherical galaxy varies as k/r over a large distance ‘r’ from its centre. In that region, a small star is in a circular orbit of radius R. Then the period of revolution, T depends on R as a small star is in a circular orbit of radius R. Then the [...]