Midterm Solutions

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Unformatted text preview: hypothesized element? Since only a tiny fraction of Nubulium is neutral (the equivalent abundance would be 10 ­18 of Hydrogen, which is less than every other atom), we would see no Nubulium absorption lines in a Solar spectrum even if it was there. We need to look in a cooler class of star, such as an M dwarf, to detect any bound ­bound transitions. Page 13 of 16 Physics 160 Fall 2013 Midterm Exam (4) [Total: 40 pts] A stellar model Assume a star of mass M and radius R has a density that varies line...
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