Academic Talk:- Death of a Sun: the Wonderful World of Planetary Nebulae
Stars like the Sun die in beauty. The Sun gets its energy from nuclear fusion of hydrogen. In about 5 billion years from now, when the available hydrogen is used up, it will first expand to become a red giant, and finally eject over half its mass into space. The ejecta forms a planetary nebula. We know of about 3000 such planetary nebulae currently in the Milky Way. They show many different shapes and intricate structures, including elliptical nebulae, butterflies, and rings - very few are just round. In this talk, the speaker will talk about how planetary nebulae form and evolve, and what we think lies in store for our own star.
時間：2017.04.21(五) 19:30 ~ 21:00
講者：Prof. Albert Zijlstra (Director of the Jodrell Bank Centre for Astrophysics, the University of Manchester, UK)