- #1
jl29488
- 10
- 0
If I have two galaxies... i.e Ellipticals.. with same mass, size and velocity dispersion approaching each other and merging to form a bigger galaxy, what would be the total energy of the system?
I'm assuming they would be approaching each other from 'infinity', so E=0 initially. I'm guessing its something to do with the virial theorem?
I'm really stuck! :(
I'm assuming they would be approaching each other from 'infinity', so E=0 initially. I'm guessing its something to do with the virial theorem?
I'm really stuck! :(