IDL5_answer

IDL5_answer - IDL Problem #5 Write an IDL computer code to:...

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1 IDL Problem #5 Write an IDL computer code to: (a) Plot out the Planck function hemispheric spectral irradiance for temperatures of 100, 300, 500, and 6000 K as functions of both frequency and wavelength. Assume the source is isotropic. Make separate plots for frequency and wavelength, but include all temperatures on each plot. (b) Overplot one example of each of the limiting cases (Wien’s Limit and Rayleigh-Jeans limit) on both the frequency and wavelength plots (i.e., you need only plot these limiting functions for one of the four temperatures). (c) For each temperature, calculate the maximum irradiance numerically from the data plotted (e.g., use the idl “max” function). Compare this to the theoretical value obtained from Wien’s Law and explain any differences. Hint : You might need to use double precision in your code. Answer : See the code posted on the web site, as well as the information below. (a) The Planck functions in terms of wavelength and frequency are given by the following
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This note was uploaded on 01/19/2011 for the course ATOC 5235 taught by Professor Randell during the Fall '10 term at Colorado.

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IDL5_answer - IDL Problem #5 Write an IDL computer code to:...

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