The Milky Way
From PGSC Wiki
- Draw a sketch of the galaxy edge-on
- what's the rotation curve if there were only the supremassive BH, if it were constant density, the one actually measured?
- What is Sag A*? How do we know its properties? How can you constrain the compactness?
- what does this imply? about the density of DM? do you know of any physical process which would lead to this r-dependence of density?
- where are the globular clusters? how many are there?
- Draw a sketch of the Milky Way? Label distances. What are the stellar populations and scale heights (4 of them not including globular clusters)?
- What is the density of halo stars?
- What is the density of stars in the solar neighborhood? (AB)
- How are Milky Way rotation curves measured?
- Inside the solar orbit?
- Outside the solar orbit?
- How do the error bars compare?