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GPPU Seminar

Theoretical study of the origins of merging binary black holes

Ataru Tanikawa
(Univ. of Tokyo)


Date

15:00-17:00, June 14th, 2021

Place

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Abstract

天文学談話会 兼GPPUセミナー

The first black hole (BH) merger has been discovered by gravitational wave (GW) observation as the first GW detection in 2015. Since then, about 50 BH mergers have been reported by 2020. The BH masses range from 5 to 100 solar masses, and are quite different from those of BHs previously discovered by X-ray observations. Thus, the origin of merging BHs is one of the most important open questions in astrophysics. Many formation scenarios of merging BHs have been suggested: isolated binary evolution and dynamical capture in dense stellar clusters. In this talk, I breifly review these scenarios, and introduce our recent studies on BH formation scenarios in open clusters and Population III environments.

Point

GASP 1

Contact: Yusuke Tanimura (tanimura [at] nucl.phys.tohoku.ac.jp)