95 citations · 297 across the 12 of their papers we have counts for
13 papers
Circular polarization of gravitational waves from magnetorotational supernovae
Shota Shibagaki, Tomoya Takiwaki, Kei Kotake +2
Context. Gravitational waves (GWs) provide a unique probe of the explosion mechanism of massive stars and the evolution of nascent proto-neutron stars (PNSs). Magnetorotational exp…
Neutron stars in accreting systems -- signatures of the QCD phase transition
Noshad Khosravi Largani, Tobias Fischer, Shota Shibagaki +2
Neutron stars (NS) that are born in binary systems with a main-sequence star companion can experience mass transfer, resulting in the accumulation of material at the surface of the…
Three-dimensional GRMHD Simulations of Rapidly Rotating Stellar Core-Collapse
Shota Shibagaki, Takami Kuroda, Kei Kotake +2
We present results from fully general relativistic (GR), three-dimensional (3D), neutrino-radiation magneto-hydrodynamic (MHD) simulations of stellar core collapse of a 20 M$_\odot…
Input optics systems of the KAGRA detector during O3GK
T. Akutsu, M. Ando, K. Arai +246
KAGRA, the underground and cryogenic gravitational-wave detector, was operated for its solo observation from February 25th to March 10th, 2020, and its first joint observation with…
Characteristic Time Variability of Gravitational-Wave and Neutrino Signals from Three-dimensional Simulations of Non-Rotating and Rapidly Rotating Stellar Core-Collapse
Shota Shibagaki, Takami Kuroda, Kei Kotake +1
We present results from full general relativistic three-dimensional hydrodynamics simulations of stellar core collapse of a 70 M star with spectral neutrino transport. To i…
Overview of KAGRA : KAGRA science
KAGRA Collaboration, T. Akutsu, M. Ando +240
KAGRA is a newly build gravitational-wave observatory, a laser interferometer with 3 km arm length, located in Kamioka, Gifu, Japan. In this paper in the series of KAGRA-featured a…
The Recent Developmental Status of SNEGRAF: a Web-Based Gravitational Wave Signal Analyzer
Satoshi Eguchi, Shota Shibagaki, Kazuhiro Hayama +1
Unveiling physical processes in a supernova is one of challenging topics of modern physics and astrophysics since that event is due to particle physics on a stellar scale and tight…
An arm length stabilization system for KAGRA and future gravitational-wave detectors
T. Akutsu, M. Ando, K. Arai +198
Modern ground-based gravitational wave (GW) detectors require a complex interferometer configuration with multiple coupled optical cavities. Since achieving the resonances of the a…
A New Gravitational Wave Signature of Low- Instability in Rapidly Rotating Stellar Core Collapse
Shota Shibagaki, Takami Kuroda, Kei Kotake +1
We present results from a full general relativistic three-dimensional hydrodynamics simulation of rapidly rotating core-collapse of a 70 M star with three-flavor spectral…
Application of the independent component analysis to the iKAGRA data
KAGRA Collaboration, T. Akutsu, M. Ando +244
We apply the independent component analysis (ICA) to the real data from a gravitational wave detector for the first time. Specifically we use the iKAGRA data taken in April 2016, a…
Prototype Implementation of a Web-Based Gravitational Wave Signal Analyzer: SNEGRAF
Satoshi Eguchi, Shota Shibagaki, Kazuhiro Hayama +1
A direct detection of gravitational waves is one of the most exciting frontiers for modern astronomy and astrophysics. Gravitational wave signals combined with classical electro-ma…
Relative contributions of the weak, main and fission-recycling r-process
S. Shibagaki, T. Kajino, G. J. Mathews +3
There has been a persistent conundrum in attempts to model the nucleosynthesis of heavy elements by rapid neutron capture (the -process). Although the location of the abundance…
R-Process Nucleosynthesis in Core-Collapse Supernova Explosion
T. Kajino, S. Wanajo, G. J. Mathews
We study the r-process nucleosynthesis in neutrino-driven winds of gravitational core collapse SNeII. Appropriate physical conditions are found for successful r-process nucleosynth…