[Zoadian]

are g-waves causing the Galactic filaments?

[notaustinpowers]

No, they are not caused by the galactic filaments. We don't know exactly yet what all is causing gravitational wave background (GWB), but a theory is that it could be caused by supermassive black holes, or primordial black holes from the early universe, etc.

[Zoadian]

I asked the reverse. If the filaments are caused by gravitational waves.