Recent content by Jeon

That means the surface density is only about the visible mass contribution. I should have a look again. Thanks!

I'd like to know the mass distribution without dark matter, estimated by only visible mass.

I've searched for a formula of galaxy mass Distribution formula along the radius, often the papers say: ρ∝ex ( ρ is the surface density, x is distance from the Center of the galaxy). is it correct without DM? Or is there any other correct formula?