星系塚與我們太陽的最終命運


Lecture series:- The Gravitus of Gravity and why matter matters 
Lecture :- The Galactic Graveyard and the Ultimate Fate of Our Sun 
 
Astronomy is a fascinating subject studying all extraterrestrial objects and phenomena. In this public lecture series, some stunning astronomical phenomena including planetary nebulae, supernova explosions, black holes, neutron stars and cosmic web will be introduced. Participants will be amazed by the complexity and beautiful objects up above our sky. 
 
Stars, the key building blocks of all galaxies, are born in collapsing gas clouds, live their lives as nuclear fusion reactors, and eventually die. Massive stars live fast and die young, exploding as supernovae after only a few million years. In this talk, the speaker will talk about late stage stellar evolution and how stars evolve. The speaker will focus on so called “Planetary Nebulae” that derive from stars around one to eight times the mass of our Sun, representing 90% of all stars more massive than the Sun. The speaker will describe this beautiful but short lived phase of stellar death and the implications for our own Sun a few billion years from now.
 
時間:2018.02.09(五) 17:45 ~ 18:45
地點:香港大港 梁銶琚樓KK102室
講者:Professor Quentin A. Parker(香港大港物理系)
語言:英語
 
免費講座,參加者必須報名登記

此活動由香港大學理學院主辦。

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