Difference between revisions of "Dynamics"
From PGSC Wiki
Line 6: | Line 6: | ||
*What's dark matter? | *What's dark matter? | ||
**How do we know it exists? | **How do we know it exists? | ||
+ | **What is the dark matter fraction for the MW? Universe? Why the difference? (MT) | ||
*What is the circular velocity of the sun around the galactic center? What is its distance from the GC? Orbital period? | *What is the circular velocity of the sun around the galactic center? What is its distance from the GC? Orbital period? | ||
*Plot the position of the sun on a galactic rotation curve | *Plot the position of the sun on a galactic rotation curve | ||
*How will u estimate the following WITHOUT using the Jeans equation: radial dependence of the density of dark matter, the amount of DM in the local neighborhood | *How will u estimate the following WITHOUT using the Jeans equation: radial dependence of the density of dark matter, the amount of DM in the local neighborhood | ||
*Does the virial theorem hold in General Relativity? | *Does the virial theorem hold in General Relativity? |
Revision as of 18:28, 5 December 2008
Questions in this category have been asked by
- What do you know about the galactic rotation curve?
- How are distances measured on it?
- What's dark matter?
- How do we know it exists?
- What is the dark matter fraction for the MW? Universe? Why the difference? (MT)
- What is the circular velocity of the sun around the galactic center? What is its distance from the GC? Orbital period?
- Plot the position of the sun on a galactic rotation curve
- How will u estimate the following WITHOUT using the Jeans equation: radial dependence of the density of dark matter, the amount of DM in the local neighborhood
- Does the virial theorem hold in General Relativity?