Prof. Masaomi Tanaka (Tohoku University)
"Multimessenger astronomy and the origin of heavy elements in the Universe"
時間/地點： 2021-04-14 20:00 [Zoom]
摘要：
In 2017, the first gravitational wave observation from a neutron star merger was successfully made. The detection triggered electromagnetic wave observations over the entire electromagnetic wavelengths, which enabled the first identification of an electromagnetic counterpart of a gravitational wave source. The counterpart shows characteristic properties of "kilonova", electromagnetic emission powered by radioactive decays of newly synthesized heavy elements. By this observations, production of heavy elements by the neutron star merger is confirmed. In this talk, I introduce what we have learned about heavy nucleosynthesis by joint observations of gravitational waves and electromagnetic waves. Then, I highlight open questions and future prospects toward understanding the origin of heavy elements in the Universe.
Join Zoom meeting:
https://zoomtw.zoom.us/j/5419957689?pwd=WlB0eDIrcE0wb284Qm13Mm94MG1mUT09
Zoom meeting password: delta