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A Hydrodynamical Study on the Conversion of Hadronic Matter to Quark Matter: I. Shock-Induced Conversion
Shun Furusawa, Takahiro Sanada, Shoichi Yamada
We study transitions of hadronic matter (HM) to 3-flavor quark matter (3QM) locally, regarding the conversion processes as combustion and describing them hydrodynamically. Not only…
Exact and approximate expressions of energy generation rates and their impact on the explosion properties of Pair Instability Supernovae
Koh Takahashi, Takashi Yoshida, Hideyuki Umeda +2
Energetics of nuclear reaction is fundamentally important to understand the mechanism of pair instability supernovae (PISNe). Based on the hydrodynamic equations and thermodynamic…
A Hydrodynamical Study on the Conversion of Hadronic Matter to Quark Matter: II. Diffusion-Induced Conversion
Shun Furusawa, Takahiro Sanada, Shoichi Yamada
We study transitions of hadronic matter (HM) to 3-flavor quark matter (3QM), regarding the conversion processes as combustion and describing them hydrodynamically. Under the assump…
Pre-supernova neutrino emissions from ONe cores in the progenitors of core-collapse supernovae: are they distinguishable from those of Fe cores?
Chinami Kato, Milad Delfan Azari, Shoichi Yamada +4
Aiming to distinguish two types of progenitors of core collapse supernovae, i.e., one with a core composed mainly of oxygen and neon (abbreviated as ONe core) and the other with an…
Possible Signatures of Ejecta-Companion Interaction in iPTF 13bvn
Ryosuke Hirai, Shoichi Yamada
We investigate the possible effects of the supernova ejecta hitting the companion star in iPTF 13bvn, focusing on the observable features when it becomes visible. iPTF 13bvn is a t…
The Evolution and Impacts of Magnetorotational Instability in Magnetized Core-Collapse Supernovae
Hidetomo Sawai, Shoichi Yamada
We carried out 2D-axisymmetric MHD simulations of core-collapse supernovae for rapidly-rotating magnetized progenitors. By changing both the strength of the magnetic field and the…