92 citations · 687 across the 12 of their papers we have counts for
4 papers · 1 filter
Magneto-driven Shock Waves in Core-Collapse Supernova
Tomoya Takiwaki, Kei Kotake, Shigehiro Nagataki +1
We perform a series of two-dimensional magnetohydrodynamic simulations of the rotational core-collapse of a magnetized massive star. We employ a realistic equation of state and tak…
Sub-GeV galactic cosmic-ray antiprotons from primordial black holes in the Randall-Sundrum braneworld
Yuuiti Sendouda, Kazunori Kohri, Shigehiro Nagataki +1
We investigate cosmic-ray antiprotons emitted from the galactic primordial black holes in the Randall-Sundrum type-2 braneworld. The recent results of the BESS antiproton observati…
Affleck-Dine Baryogenesis and heavy elements production from Inhomogeneous Big Bang Nucleosynthesis
Shunji Matsuura, Alexander. D. Dolgov, Shigehiro Nagataki +1
We study the impact of possible high density baryonic bubbles on the early formed QSO, IGM, and metal poor stars. Such bubbles could be created, under certain conditions, in Afflec…
Statistical Significance of Small Scale Anisotropy in Arrival Directions of Ultra-High Energy Cosmic Rays
Hiroyuki Yoshiguchi, Shigehiro Nagataki, Katsuhiko Sato
Recently, the High Resolution Fly's Eye (HiRes) experiment claims that there is no small scale anisotropy in the arrival distribution of ultra-high energy cosmic rays (UHECRs) abov…