radiation constants

Fundamental physical constants characterizing black body radiation. The first radiation constant is $c 1 = 2 π h c 0 2 = 3.741 7749 22 × 10 −16 W m 2$ , the second is $c 2 = h c 0 k = 1.438 769 12 × 10 −2 m K$ , where $h$ is the Planck constant $c 0$ the speed of light and $k$ the Boltzmann constant.

Source:

CODATA Bull. 1986, 63, 1

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IUPAC > Gold Book > math/physics > physical constants

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IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.

Last update: 2014-02-24; version: 2.3.3.

DOI of this term: https://doi.org/10.1351/goldbook.R05051.

Original PDF version: http://www.iupac.org/goldbook/R05051.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.

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