Was it all worh it?

After almost 2 months working almost non-stop (and being absent from here because of that) it looks like stuff begins to work as can be seen in this plot. For those who want the short story: the lines follow nicely the points and that is nice.

Long story: my work as an astrophysicist in the University of Barcelona is studying how galaxies form and evolve. Most of the matter of a galaxy is "dark matter", a kind of matter which does not interact with photons and, therefore, can't be seen nor detected if it is not by its gravitational effects. This dark matter forms a kind of sphere around the galaxy which is known as a "dark matter halo".

I study how this haloes form and evolve from primordial density fluctuations left in the Big Bang. After the Big Bang, the Universe was almost homogeneous, but there were some extremely little spots which had some higher density known as peaks. Because of gravity, stuff around them started to fall there and formed the seeds of the galaxies we see today. My group is developing a model which allows to follow halo and galaxy evolution just knowing the shape and size of those density peaks.

To end with, in this plot you see the density profiles of galaxy haloes at our present day. The crosses are the profiles found with our model (different masses for each color) and the lines represent the ones found using the Einasto profile, found from numerical simulations and theoretical grounds. Now the idea is finding some relations for the Einasto equation parameters, in order to understand better why the final shape of a halo is this one.

Questions are welcome!

Units: Mass is given in "Solar masses" and distances in mega parsecs (a parsec is around 3.26 light years).