What’s the rotational speed in RPM?
From the original article in Nature (https://www.nature.com/articles/s41550-021-01380-6):
The filament rotation speed as a function of the distance between galaxies and the filament spine. The rotation speed is calculated by c × Δz, where Δz is the redshift difference of galaxies at given distance with respect to the redshift of the filament. The distance of galaxies from the filament spine in the receding region is displayed in red and ascribed positive values, while the distance of galaxies in the approaching region is marked in blue and ascribed negative values. Error bars represent the standard deviation about the mean.In other words, rotation speed is about ±100 km/s max depending on the distance to the galaxies in question in the filament spine and whether the rotation is taking them toward or away from us... is how I read it. I'd have to read it much more carefully to be sure (not happening, lol)!
33 and 1/3'd