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Unformatted text preview: are sensitive to masses between brown dwarfs and 100 solar masses black holes. The theoretical considerations as to why black holes would not be considered dark matter, one example is: if Jupiter were dark matter then there would have to be a lot of them, and that means that planet formation must be very efficient and there is constraints on that based on the number of brown dwarfs. 2. Calculate the velocity difference that the Hubble Expansion imparts between one side of the Earth to the other side. Why is the Earth not being ripped apart? The earth is not being affected because gravity is to strong in short distances to be ripped apart by the velocity. 3. Same as 2, but do the calculation for the edges of the Milky Way galaxy. Now, do the same for the effect between the Milky Way Galaxy and the Coma Cluster of Galaxies. This will have a greater affect than on earth because gravity is not as strong in large distances,...
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This note was uploaded on 09/13/2011 for the course AST 301 taught by Professor Harvey during the Spring '07 term at University of Texas at Austin.
- Spring '07