The average temperature of the interior of a sun-like star is of the order 108 K. Estimate the mass of the star in terms of the solar mass if it has a radius of order 1010 cm.
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Expert's answer
2015-03-06T04:21:05-0500
Given T = 108 K Radius = 1010 cm We must find mass of the star. Solution use the next formula L = Lsun*(R/Rsun).^2 * (T/Tsun).^4 Mass star = L.^(1/4) Matlab script Tstar = 108; % K Tsun = 5778; %K Rsun =695500*1000*100 ; %in cm Rstar=1010; % cm % Using formulas L/Lsun = (R/Rsun).^2 * (T/Tsun).^2 l = (Rstar/Rsun).^2 * (Tstar/Tsun).^4 Mass_star = l.^0.25 Matlab Output Mass_star = 2.2525e-06 * Mass Sun
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