This preview shows page 1. Sign up to view the full content.
Unformatted text preview: and , respectively. You are to assume a Plummer model for the Galctic gravitational potential. Find the Plummer parameter a from the observed values of the Oort A and B constants, A = 15 km s-1 kpc-1 , B =-12 km s-1 kpc-1 , assuming the Galactocentric distance of the Sun is R = 8 . 5 kpc and its circular velocity is V = 220 km s-1 . Also determine the total mass of the Galaxy and the fraction which is interior to the solar circle. Explain the ratio / that you nd....
View Full Document
- Spring '11