The Acceleration of Oumu Amua

Oumu Amua accelerated away from the sun it did not go in a constant speed there was acceleration as if there is a rocket jet behind it of some kind but as it went further from the sun the acceleration decreased. No ejection of dust or water vapor or carbon dioxide or anything was detected at all so it was somehow accelerating but there was no mechanism that could account for the acceleration. The physicist Avi Lobe, the Israeli physicist he said that this is behaving like a solar sail.