Below, the dark matter center of M87 could better be interpreted as Black/White hole of the hourglass polarized vacuum to understand the X-shaped (or hourglass) Nebula of dead- and protostars..
see: Primordial Black Holes and dual Herbig Haro Effects for Star-Galaxy formation.
https://vixra.org/pdf/2101.0158v1.pdf
Many single Hourglass shaped Nebula around dying stars are found in space. explained by the new physics of Q-FFF Theory.