Look to the moon, see how galaxy rotates

احسان ابراهیمیان ( دانشکده فیزیک دانشگاه صنعتی شریف)

Abstract: It is common to explain the galaxy rotation by the gravitational instability picture proposed by Hoyle and developed by Peebles and others. But there are some discrepancies with theory and simulations which should not be a surprise since the gravitational instability picture only works in the linear regime. This led people to search for other nonlinear mechanisms to explain the angular momentum of the galaxies and dark matter halos. We believe that the tidal locking mechanism can be the origin of galaxy rotation, the very same mechanism that locks the Moon to the Earth, and we have some convincing evidence for it.

یکشنبه 25 فروردین  1398، ساعت 15:00

دانشکده فیزیک، طبقه همکف کلاس فیزیک 1