Start rewriting all visualization/plotting scripts: a raw loader
Compose two images into one
Convert a loaded structure into flux (in Jy) or luminosity (in ergs/s)
Pass para to Data::output() for more flexible outputs; save nu0
Update the raw loader to take into account nu0
Initialize c.nu0[] because we will need to output it
Since we have access to the constants; we can easily skip unused nu0s