Difference between revisions of "The Milky Way"
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* Draw a sketch of the galaxy edge-on | * Draw a sketch of the galaxy edge-on | ||
| − | * what's the rotation curve if there were only the supremassive BH, if it | + | * what's the rotation curve if there were only the supremassive BH, if it were constant density, the one actually measured? |
| − | were constant density, the one actually measured? | + | |
| − | * what does this imply? about the density of DM? do you know of any physical | + | * What is Sag A*? How do we know its properties? How can you constrain the compactness? |
| − | process which would lead to this r-dependence of density | + | |
| + | * 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? | * 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? | ||
| + | |||
| + | [[Astrophysics]] | ||
Latest revision as of 16:55, 25 April 2011
MT
- 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?
