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Galactic Dynamics. Imagine that you are an occupant of a strange, distant galaxy, living on a...

Galactic Dynamics. Imagine that you are an occupant of a strange, distant galaxy, living on a planet in a solar system 10 kpc away from the galaxy's center. Looking along a galactic longitude of I 25°, you determine the orbital velocity of a cloud to be v = all orbits to be circular. 250 km/s. Take (a) You determine that this cloud is at the subcentral point-what is its orbital radius? (b) What is the mass interior to the cloud's orbit? (c) Observations show that the density is constant in this galaxy out to your radius (10 kpc)-what orbital velocity? is your (d) What is the escape velocity for a star that shares your orbital radius?

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genius_generous answered 1 year ago
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