Cosmic rate of black hole formation over time

Is it possible to plot a rough approximation of the rate of for-
mation of black holes in the universe over cosmic time?
I'm referring really to the formation of stellar mass black
holes, whose number far exceeds those of supermassive holes.

I'm guessing this would correlate to some degree with the rate
of supernovae formation in the universe over cosmic time also.
I'm also guessing that the plot would not be straight but might
have a maximum, perhaps several billion years ago, with some
tapering off toward the present. Is there a source on the NET
which covers this?

Thanks,
Gene Partlow

wrote:
Is it possible to plot a rough approximation of the rate of for-
mation of black holes in the universe over cosmic time?
I'm referring really to the formation of stellar mass black
holes, whose number far exceeds those of supermassive holes.

I'm guessing this would correlate to some degree with the rate
of supernovae formation in the universe over cosmic time also.

Yes, specifically with the rate of SN in the mass range that creates
black holes (not too big, if I remember correctly). And this is, of
course, related to the rate of star formation over cosmic time, which
is a very active topic of research. Current evidence says that the
star formation rate peaked between z=3 and z=2, but that isn't certain.
It does seem certain that the star formation rate was higher in the
past than it is today. You might want to try a web search on "Madau
plot."

Steve Willner