Gravitational waves from first star remnants

開催日時

2024/11/05(木)11:00〜12:00

開催場所

研究本館3階セミナールームとzoom

講演者

衣川智弥 准教授(信州大学)

言語

英語

お問い合わせ

Volodymyr TAKHISTOV/vtakhist-AT-post.kek.jp

概要

We calculated binary evolutions of first stars (Pop III) and showed that the typical chirp mass of Pop III binary black holes is ∼30Msun with a total mass of ∼60Msun and the maximum mass of Pop III BBH is more massive than the limit mass of the pair-instability supernovae. Our result, which predicted gravitational wave events like

GW150914 and GW190521, can explain the origin of massive stellar binary black hole mergers. In this talk, I will explain Pop III binary evolutions and the properties of Pop III binary black hole mergers.

There is a good chance to check indirectly the existence of Pop III massive stars by gravitational waves.