The paper by Schmidt (doi: 10.3847/1538-3881/ac3416) got me wondering as to how compact the observed clustering of slow-dippers was. Thus I created this program to help me visualize it.
This is in fact the standard result (as I have chosen to define it). Though I highly recommend running the script for your self, since three dimensions rarely translate well through a two dimensional picture.
Even though the clustering isn't seemingly compact in human scale, when comparing to all found slow-dippers one realizes it is in fact significant. I have not adjusted for observational bias due to distance, and neither have I encountered any studies analyzing that.
(If you're observant, you might realize this is actually printing all+)