Astr 222 March 16, 2005:  

Galaxy mergers and interactions

Galaxy mergers

Questions

Where are galaxies more likely to collide?

Dynamic friction

Dynamic friction continued

and more dynamic friction

Quasars

Blackbody Radiation

AGN

Energy source for AGN

How gravity does it

Dropping mass in...

How does the energy get out?

blackhole jets diagram

Take a massive blackhole..

model for active nucleus

Magnetic fields and blackholes

How do we produce a physical limit?

Our limit