A Concise Introduction to Astrophysics
1 Continuous radiation from stars 11 ... with just a general introduction to physics. Few sections of the text that are somewhat more advanced and that can be omitted are marked by stars. I will be glad to receive feedback from the readers of these notes. If you find errors or have
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Planck’s Derivation of the Energy Density of Blackbody ...
web.phys.ntnu.noThis is the usual form of the Stefan-Boltzmann law. The constant = 5.670 × 10-8 W m2 K4 = 5.670 × 10-5 erg cm2 s K4 = Stefan-Boltzmann constant. It is of interest to look at the limits of the Planck distribution. At low frequency or large wavelength, u (T) → 8 2kT c3 and u (T) → 8 kT 4 = Rayleigh-Jeans law. Note that Planck’s constant ...
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