deletions | additions       diff --git a/After_finding_the_total_mass__.tex b/After_finding_the_total_mass__.tex  index 8f2ffc9..46a5cc6 100644  --- a/After_finding_the_total_mass__.tex  +++ b/After_finding_the_total_mass__.tex 
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After finding the total mass and total luminosity of a spiral galaxy from the IMF, I was able to find a mass/luminosity relationship of $0.0028$. This number is very small compared to the value found from galaxies: $18.10$. It is also not reasonable as we have modeled our galaxy to only have one epic of star formation and none of the stars have turned off the main sequence and become giants.   \subsection{Guy Worthey's IMF Interpolation}  In order to understand if galaxies are primarily composed of stellar material, we need to vary the age, the stellar population, and therefore the luminosity of the galaxies. Because the process of varying age and stellar population is complicated, I used a program called Guy Worthy’s model Interpolation Engine. This allowed me to input the age of the galaxy, the metal content, and the percentage of stars with a given metal content. This way, I was able to use characteristics of real spiral galaxies by accounting for the fact that as the galaxy ages some stars become giants, some giants stop shell burning, and new stars are always being born. The figure below shows the input from the Guy Worthey's Interpolation.