In order to understand more about the different particles, I wanted to calculate the amount per second that would be passing through the solar system and your finger nail if that particle was the sole candidate for dark matter. In order to do this, I needed to use the mass density of the halo (0.041985967) for dark matter because dark matter is found only in the halo. The results are shown below in Figure 10. I used a fingernail cross sectional area to be 1cm x 1cm. To find the mass, I had to convert from eV into Joules than use \(E = mc^2\) to find the mass of the particle. From there, I converted that mass into solar masses and found the density of that particle in \(\#/m^3\). I divided the number density by the volume of the halo, than I found how many pass through the solar system per second and your fingernail per second.