Absolute Flux Calculation Fix

[SherelynA]

Patch to fix absolute flux calculation which is is missing a square.

[hover2pi]

Let me know if/when you want a review on this!

[SherelynA]

@hover2pi
Yes, I actually wanted to know if you had any nifty idea about how to check these are flux calibrated properly. I currently have some code written for test but nothing that is checking it yet.

[kelle]

I added some tests and I think this is ready for review.

[hover2pi]

Nice. Thanks for writing these tests!

[hover2pi]

Oh, to answer your question above, we could run this test on a specific source and compare against some values from the literature. That would be great, though I don't think there are any verification tests with actual sources besides Vega. I would say add verification tests in a later PR and merge this now.

[SherelynA]

sounds good, I am going to merge! is that good @hover2pi ?

[kelle]

@SherelynA , you can squash and merge this. Once done, I can make a new release.