太陽之死 – 行星狀星雲的奇妙世界


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
地點:香港大學 莊月明物理樓LG1/F,P3演講廳
講者:Prof. Albert Zijlstra (Director of the Jodrell Bank Centre for Astrophysics, the University of Manchester, UK)
名額:140
語言:英語

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此活動由香港大學物理系&香港大學天文學會主辦。

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