From the 1 of 4 linked papers with an AI index.
4 papers
Shock breakout from mildly relativistic ejecta in a dense wind: the case of EP260321a/SN~2026gzf
Akihiro Suzuki, Keiichi Maeda, Toshikazu Shigeyama
We present shock breakout (SBO) modeling of the recently discovered X-ray transient EP260321a detected by the \textit{Einstein Probe} mission. Our semi-analytic model, based on our…
Constraints on the Metallicity-dependent Explodability of Massive Stars from Galactic Chemical Evolution: Toward Alleviating the Red Supergiant Problem
Sojun Ono, Keiichi Maeda, Akihiro Suzuki
The authors integrate metallicity‑dependent massive‑star explodability prescriptions into galactic chemical evolution models, showing they reproduce observed elemental abundances a…
Chemical Abundance Ratios of Nitrogen Rich Galaxies Identified at : Observational Demographics and Models
Kuria Watanabe, Masami Ouchi, Kimihiko Nakajima +13
We present chemical abundance ratios of 8 nitrogen-rich ([N/O]) galaxies at identified by the first 4 years of the JWST observations, and compare these ratios wi…
Radial pulsation runaway in massive red supergiants in late evolutionary stage and implications to hydrogen-rich supernovae
Akihiro Suzuki, Toshikazu Shigeyama
Performing a series of hydrodynamic stellar evolutionary simulations with \textsc{Mesa} (Module for Experiments in Stellar Astrophysics), we investigate the excitation and growth o…