Appendix C: Summary of Formulas

 

In the following formulas, ν is in Hz, λ in μm, σ in cm-1, and T in K.  The rest of the constants are given below.

 

 

                                          

 

 

 

                           

 

 

 

                                    

 

 

 

                      

 

 

 

                     

 

 

 

          

 

 

    

 

 

 

 

 

 

 

 

 

 

 

 

              (u is relative velocity of source, u > 0 indicating recession)

 

 

 



Calculation of a Blackbody Radiance
Units of Frequency
Units of Wavelength
Units of Wavenumbers
Radiance: Integrating the Planck Equation
In-band Radiance: Integrating the Planck Equation over a Finite Range
Appendix A: Algorithms for Computing In-band Radiance
Appendix B: The Doppler Effect
Appendix C: Summary of Formulas
References
Blackbody Calculator
Print Version