The Visible Milky Way Galaxy
- simulated view of Milky Way seen from outside; a possible similar galaxy
- all-sky near infrared: stars, less dust
- all-sky radio at 21 cm: neutral hydrogen atoms
Galactic Rotation Curve
Milky Way Dark Matter
- What the heck is it?!?
- favorite candidate today: exotic relic particles
underground detection experiment
Galaxies
Some History
- What he heck are these nebulae? are they like these nebulae?
- Curtis-Shapley debate (1920)
- Hubble (the man) discovers a cephied in M31
- Hubble (the telescope): Cephieds in M100
the recordholder: NGC 4603
Galaxy Rotation Curves
- Data: M33
Some examples of typical rotation curves - Interpretation
