Joy Division lifted that image from a text book. Its a graph, not original art for the album.
[img=]https://blogs.scientificamerican.com/blogs/assets/sa-visual/Image/Cambridge_Encyclopedia.jpg[/img]
[img=]https://blogs.scientificamerican.com/blogs/assets/sa-visual/Image/pulsar_trio.jpg[/img]
If you go to the
Blend's page, Line makes it pretty clear where they got the graphic from
[img=]842709[/img]
you could even make the argument that it is more original since they worked in the ape face instead of copy pasting the graph.
Here's a pretty interesting article if you're interested in more history on the graphic:
https://blogs.scientificamerican.com/sa-visual/pop-culture-pulsar-origin-story-of-joy-division-s-unknown-pleasures-album-cover-video/