I've found a bunch of SFR plots vs z, but haven't yet found an SN
rate vs z plot. Does one exist?

Ideally, SNII and SNIa plots separated since each produces different
energies, but I'll take anything at this point.

I've read that there are 30 SN per second in the observable universe,
but this was a goofy article, not a paper. Any good plots out
there? I haven't even found a plot searching images????? not sure
why not. Bad search terms likely?

rt