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Madeline Horn edited Talk_about_mass_of_the__.tex
over 8 years ago
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Talk about In order to find out the percentage of stellar mass in a galaxy, I took the average M/L ratio of the stellar mass (1.61) and divided it by the average of the M/L ratio of the galaxy mass
(19.99) and multiplied it by 100. This gave me a result of: $8.05\%$ of the
stuffffff galaxies mass is composed of stellar mass. That number seems extremely small given that there are billions of stars. So, the next question is: where could the rest of the mass be coming from? Astronomers have been trying to answer this question for centuries and call all of the extra mass "Dark Matter" because it does not contribute to the galaxies luminosity. Some possible candidates for dark matter would be: HI gas, HII gas, molecular gas, black holes, brown dwarfs, and many other possibilities.
