Distorted Interstellar Bubbles: a new mathematical and computational model

I present a new physical-mathematical method that describes the shape of a distorted interstellar bubble, namely the surface of a heliosphere deformed by the motion of the circumstellar gas. I created a straightforward but rigorous model, which has been tested on two real objects through a specifically developed algorithm that produces the outline of the bubble. Thus, I obtained a solid of revolution that allows the direct comparison between the mathematical model and the astronomical observations. The test-cases show a segment of the bubble’s surface, presenting a bright structure called bowshock, caused by the violent interaction between the stellar wind and the surrounding gas. The comparison has highlighted an excellent match between my theoretical model and the observable dynamics.

Category: PHYSICS Country: ITALY Year: 2021


Giovanni Benetti