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Suppose that a neutron star has a radius of 14 km and a temperature of 1,000,000...

Suppose that a neutron star has a radius of 14 km and a temperature of 1,000,000 K. How luminous is it?

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Answer #1

Answer-The luminosity of a star is given by the equation

  Where L is the luminosity in Watts, R is the radius in meters, S is the Stefan-Boltzmann constant
(5.67 x 10-8 Wm-2K-4), and T is the star's surface temperature in Kelvin. Given R=14KM=14000M Tem=1*106

so L=4x 3.14x 14000x 14000x 5.67x 10-8x (1x 106)^4

L=13958.17x 10^22 watts.

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