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There is a typical elliptical galaxy that has a velocity dispersion that is high. a. relatively, what's...

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Physics

There is a typical elliptical galaxy that has a velocitydispersion that is high.

a. relatively, what's its stellar mass?

b. Compared this galaxy to a galaxy with a lower velocitydispersion but the same half light radius. How does the surfacebrightness of this high σ galaxy differ?

Answer & Explanation Solved by verified expert
3.6 Ratings (587 Votes)
Stellar mass is a phrase that is used by astronomers to describe the mass of a star It is usually enumerated in terms of the Suns mass as a proportion of a solar mass It turns out that the only good way to    See Answer
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