Questions on diatomic spectroscopy

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To calculate the observed flux of diatomic molecules in Jansky, one must solve the radiative transfer equation and determine the Einstein coefficients. The temperature of the material and the specific transition are critical for this calculation. Observed Full Width at Half Maximum (FWHM) can provide insights into line broadening mechanisms, indicating factors like pressure or temperature effects. Understanding the relative population of states is essential for accurately using Einstein coefficients in flux calculations. These methods are fundamental for analyzing diatomic spectroscopy effectively.
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I've been looking at spectra from diatomic molecules. If I know the temperature of the material I'm looking at and I know which transition I want to look at how can I calculate what the observed flux (in Jansky) should be?
Also, what can I calculate from observed FWHM?

Thanks.
 
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ollo said:
If I know the temperature of the material I'm looking at and I know which transition I want to look at how can I calculate what the observed flux (in Jansky) should be?
You need to solve the radiative transfer equation---in particular, finding the Einstein Coefficients

ollo said:
Also, what can I calculate from observed FWHM?
The width of lines tells you many things concerning the cause of Line Broadening
 
I have the Einstein coefficients and I know the relative population of states, but how do I use these to calculate a flux?
 

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