Using Spectra.jl instead of wavelengths + flux

[lucasvalenzuela]

I noticed there is a (currently unmaintained?) Spectra.jl package that provides a Spectrum type. When we apply a photometric filter to a spectrum, we currently always have to pass in the wavelengths and fluxes as two separate arrays, where I think it would be more elegant and it could come with additional benefits to use Spectrum instead. Also, the Vega type could simply contain a Spectrum, too.

I am not sure if there is any disadvantage of using Spectra.jl with it being unmaintained, though it does not seem like the general API of Spectrum would change much in the future.

[cgarling]

I've had the same thought and decided against it since it's unregistered, unmaintained, and it also conflicts with the currently registered Spectra.jl.

If someone were to take it over I would support switching. In general I think some sort of spectrum type is a good idea. But as it is the complexity it adds doesn't seem worth the benefit to me

[lucasvalenzuela]

I didn't even realize it was still unregistered and conflicted with the other Spectra.jl. I definitely think in the long run a spectrum object will be important to have, so I would propose to leave this issue open until someone takes on that topic.

[icweaver]

Let's see what we can do about that