That is in interesting formation.

There is a clear distribution of materials. I don't know the cause of that, I would really need to study it more. More information could be visible in the radiowaves and ultraviolet/x-ray range.

My first idea is that this matter was produced by some explosion or a plasma beam in the past. That might explain the cloud-shapes.

The matter itself might be compressed via electromagnetic forces. We should check for the stark/zeeman effect and polarisation effects. That would give us more information about the electromagnetic activity. There also should be vague plasma bridges between the dense stars.

In peer-reviewed articles, this would be explained with gravity after an explosion. And of course some invisible dark matter to top it off.