How does this effect average galaxy dynamics? What were we expecting?If this true it means that the dynamics of galaxies are not on average as similar as was expected.
It could be a statistical outlier of course, doing odd things because of gravity interactions with other nearby galaxies.
Do you have a publication as reference discussing this?Radar; Fast Radio Bursts carry with them the chirp necessary for re-compression to raise the echo above galactic noise.. Select from an inventory of FRBs to match to the distance of local stellar systems so that an echo will occur at a convenient time. An accurate time slot means that a radio telescope can be re-allocated for a short time to pick up the echo.