The origin of Hot Gas and Xray fronts between colliding Galaxy Clusters: By Non Inertial Dark Matter Black Holes making Herbig Haro systems and hot gas..
In the Q-FFF model, Black Holes (=Dark Matter) equipped with a String Knot nucleus, seem to have no Inertia in contrast with Material Stars
This is a strong indication of the origin of Hot Gas Bridges between colliding Galaxy clusters, due to the early collision of non inertial black holes, earlier than the colliding star based galaxies.
See also:The Origin of Universal Structure: Herbig Haro Strings by Electric Dark Matter Black Hole- Systems.
Below: 2x colliding Galaxy Clusters Abell 2015-2016 with an early Gas- Xray- bridge created by Inertia less and Mass less Black Hole singularities at the Penrose trapped space horizon, much earlier than the Galaxy Cluster collision.
The Black Holes seem to have NO inertia, which result into a quick attraction between both Black Hole populations of the two clusters.
For normal Fermion Matter: See H. Puthoff and A. Rueda:
"Inertia as a zero point field Lorentz Force."
https://www.researchgate.net/publication/13379419_Inertia_as_a_zero-point-field_Lorentz_forceUnder the hypothesis that ordinary matter is ultimately made of subelementary constitutive primary charged entities or partons'' bound in the manner of traditional elementary Planck oscillators (a time-honored classical technique),
it is shown that a heretofore uninvestigated Lorentz force (specifically, the magnetic component of the Lorentz force) arises in any accelerated reference frame from the interaction of the partons with the vacuum electromagnetic zero-point field (ZPF).
Partons, though asymptotically free at the highest frequencies, are endowed with a sufficiently large bare mass'' to allow interactions with the ZPF at very high frequencies up to the Planck frequencies
What Q-FFF Model says about Inertia. see: Non Inertial Dark Matter Black Hole Galaxy Hierarchy According to Quantum FFF Theory
The New Physics Black Hole Nucleus: Gravity Without Inertial Mass Effects.