演講資訊

摘要：

The astrophysical site hosting the formation of elements heavier than iron, including Silver, Gold and Uranium, via the rapid neutron-capture process (r-process) has been debated for many decades. Remarkable similarity of the abundance patterns found in metal-poor stars and in the Solar system suggests a rather robust condition under which these elements are produced across the cosmic time. Over the past few years, owing to the advances of theoretical development and various observational hints, the prevalent paradigm shifted largely from core-collapse supernovae to the merger of compact objects -- binary neutron stars or one neutron star with one black hole. In this talk, I will first introduce the basic concept and ingredients of the r-process nucleosynthesis. I will then discuss some of the recent evidences and discoveries which are relevant for identifying the r-process sites. I will also speak about the challenges and opportunities lying ahead.