Do Bursting Galaxies Leave Ghosts in Their Halos?
Do Bursting Galaxies Leave Ghosts in Their Halos? Galaxies don’t exist in isolation. They sit inside vast halos of gas that act like a living halo around a cosmic city—cool, hungry, and full of sudden weather changes. The circumgalactic medium CGM is where inflows supply fuel and outflows fling metals, heat, and dust far from…