2004/12/05 | 恒星温度[Stellar Temperature]
类别(Ω〖物理〗) | 评论(0) | 阅读(37) | 发表于 11:15
Using the hydrostatic law for a uniform density star gives the stellar pressure as a function of radius r as
(1)

where is the density,G is the gravitational constant,and R is the stellar radius.Applying the ideal gas law at the star's center then gives
(2)

where m is the molecular mass and k is Boltzmann's constant. Therefore, assuming only hydrostatic equilibrium (i.e., ignoring thermonuclear fusion), the temperature at the center of the star is
(3)

where M is the mass of the star.
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