Surrogate Modeling for Computationally Expensive Simulations of Supernovae in High-Resolution Galaxy Simulations

no code implementations • 14 Nov 2023 • Keiya Hirashima, Kana Moriwaki, Michiko S. Fujii, Yutaka Hirai, Takayuki R. Saitoh, Junichiro Makino, Shirley Ho

SNe release a substantial amount of matter and energy to the interstellar medium, resulting in significant feedback to star formation and gas dynamics in a galaxy.

3D-Spatiotemporal Forecasting the Expansion of Supernova Shells Using Deep Learning toward High-Resolution Galaxy Simulations

1 code implementation • 31 Jan 2023 • Keiya Hirashima, Kana Moriwaki, Michiko S. Fujii, Yutaka Hirai, Takayuki R. Saitoh, Junichiro Makino

To apply this method to the particles affected by SNe in a smoothed-particle hydrodynamics simulation, we need to detect the shape of the shell on and within which such SN-affected particles reside during the subsequent global step in advance.

Spin distribution of binary black holes formed in open clusters

no code implementations • 18 Feb 2021 • Jun Kumamoto, Michiko S. Fujii, Alessandro A. Trani, Ataru Tanikawa

We performed direct N-body simulations of open clusters with four different metallicities.

High Energy Astrophysical Phenomena

Spin misalignment of black hole binaries from young star clusters: implications for the origin of gravitational waves events

no code implementations • 2 Feb 2021 • Alessandro Alberto Trani, Ataru Tanikawa, Michiko S. Fujii, Nathan W. C. Leigh, Jun Kumamoto

Recent studies indicate that the progenitors of merging black hole (BH) binaries from young star clusters can undergo a common envelope phase just like isolated binaries.

High Energy Astrophysical Phenomena Astrophysics of Galaxies