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Find the approximate mass of the dark and luminous matter
Chapter 34, Problem 2(choose chapter or problem)
Problem 2PE
Find the approximate mass of the dark and luminous matter in the Milky Way galaxy. Assume the luminous matter is due to approximately 1011 stars of average mass 1.5 times that of our Sun, and take the dark matter to be 10 times as massive as the luminous matter.
Questions & Answers
QUESTION:
Problem 2PE
Find the approximate mass of the dark and luminous matter in the Milky Way galaxy. Assume the luminous matter is due to approximately 1011 stars of average mass 1.5 times that of our Sun, and take the dark matter to be 10 times as massive as the luminous matter.
ANSWER:
Solution 2PE
The approximate mass of the dark and luminous matter in the Milky Way galaxy is given by
M =10ML
Here ML is the mass of the luminous matter in the Milky Way galaxy.
The approximate mass of the luminous matter in the Milky Way is given by:
ML = n x 1.5ms