Pls enlighten me

[geeksoo]

I need the individual flux densities, (actual numerical value) so that I can do fitting with theoretical models of a particular type of star with degenerate cores, to see if they are good candidates, such that further observations would be made.

[cantaresg]

So you do not need the intensity of the absorption/ emission lines? You needed a theoretical blackbody spectrum of the star in concern? Is that what you are referring to?

[ChaosKnight]

You can numerically generate your blackbody spectrum:



Since you are interested in radiance/energy/intensity vs frequency, you can easily get:



After generating all the numerical data, you can integrate it numerically to get the cumulative energy curve. Energy emitted between a spectral band is then just the difference in readout between the upper/lower frequency bounds.



The graphs generated and plotted is for a blackbody of temperature 6000K.

[cantaresg]

Yes, that's what I was intending too. All you need is to use the Planck's Law to generate the black-body curve, you can get a good fit. You probably do not require the actual flux densities I believe. The spectra data published are more useful in determining the elements present and the relative abundance. That's probably why SDSS publish the relative heights rather than the actual flux densities. Correct me if I'm wrong here.