Question
Consider a newly formed globular cluster, with a total mass 10^6 Solar Masses, and an initial mass function dN/dm = am^-2.35 in the mass range
Consider a newly formed globular cluster, with a total mass 10^6 Solar Masses, and an initial mass function dN/dm = am^-2.35 in the mass range 0.1 - 20 Solar Masses, where m = M/1 Solar mass.
Find the constant a
Find the total luminosity of the cluster, assuming that all its stars are on the main sequence, and a mass-luinosity relation L~M^4. What fraction of the luminosity is contributed by stars more massive than 5 solar Masses?
Find the mean mass of a star in the cluster.
Assume that the main sequence lifetime of a 1 solar mass star is 10 Gyr, and main sequence lifetime scales with mass as M^-2. What is the mass of the most massive main sequence stars in the cluster after 1 Gyr? What is the total luminosity of the cluster at thtat time?
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Introductory Classical Mechanics
Authors: David Morin
1st edition
9780511808951, 521876222, 978-0521876223
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