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solar circle (where R~R0) is about M/LB ∼ 3. What does this imply for where is
most of the Milky Way’s dark matter resides? 2. A Synthetic l-v diagram: As mentioned in class, we can observe neutral
hydrogen (HI) gas throughout the Galaxy since 21-cm radiation is not blocked by
interstellar dust. However, unlike stars, we have no easy way to determine
distance to a particular HI gas cloud we see, even though measuring the radial
velocity is trivial. In the last problem of the last homework, we worked through
the problem of computing the expected radial velocity vr and galactic longitude l
of a particular gas cloud if it was at a distance R from the galactic center in the
direction at galactic azimuth of θ. We used this to generate some l-v diagrams f...
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This document was uploaded on 03/04/2014 for the course ASTROPHYS 362 at Minnesota State University Moorhead .
- Spring '14