Search Results - "Takiwaki, Tomoya"
-
1
Anisotropic emission of neutrino and gravitational-wave signals from rapidly rotating core-collapse supernovae
Published in Monthly notices of the Royal Astronomical Society. Letters (01-03-2018)“…Abstract We present analysis on neutrino and GW signals based on three-dimensional (3D) core-collapse supernova simulations of a rapidly rotating 27 M⊙ star…”
Get full text
Journal Article -
2
Magnetorotational Explosion of a Massive Star Supported by Neutrino Heating in General Relativistic Three-dimensional Simulations
Published in The Astrophysical journal (01-06-2020)“…We present results of three-dimensional (3D), radiation-magnetohydrodynamics (MHD) simulations of core-collapse supernovae in full general relativity (GR) with…”
Get full text
Journal Article -
3
Avoided crossing in gravitational wave spectra from protoneutron star
Published in Monthly notices of the Royal Astronomical Society (01-11-2020)“…ABSTRACT The ramp up signals of gravitational waves appearing in the numerical simulations could be important signals to estimate parameters of the…”
Get full text
Journal Article -
4
Core-collapse Supernova Simulations and the Formation of Neutron Stars, Hybrid Stars, and Black Holes
Published in The Astrophysical journal (01-01-2022)“…Abstract We investigate observable signatures of a first-order quantum chromodynamics (QCD) phase transition in the context of core-collapse supernovae. To…”
Get full text
Journal Article -
5
Three-dimensional simulation of a core-collapse supernova for a binary star progenitor of SN 1987A
Published in Monthly notices of the Royal Astronomical Society (28-06-2022)“…ABSTRACT We present results from a self-consistent, non-rotating core-collapse supernova simulation in three spatial dimensions using a binary evolution…”
Get full text
Journal Article -
6
Three-dimensional simulations of rapidly rotating core-collapse supernovae: finding a neutrino-powered explosion aided by non-axisymmetric flows
Published in Monthly notices of the Royal Astronomical Society. Letters (01-09-2016)“…We report results from a series of three-dimensional (3D) rotational core-collapse simulations for 11.2 and 27 M⊙ stars employing neutrino transport scheme by…”
Get full text
Journal Article -
7
Correlated Signatures of Gravitational-wave and Neutrino Emission in Three-dimensional General-relativistic Core-collapse Supernova Simulations
Published in The Astrophysical journal (10-12-2017)“…We present results from general-relativistic (GR) three-dimensional (3D) core-collapse simulations with approximate neutrino transport for three nonrotating…”
Get full text
Journal Article -
8
A COMPARISON OF TWO- AND THREE-DIMENSIONAL NEUTRINO-HYDRODYNAMICS SIMULATIONS OF CORE-COLLAPSE SUPERNOVAE
Published in The Astrophysical journal (10-05-2014)“…We present numerical results on two- (2D) and three-dimensional (3D) hydrodynamic core-collapse simulations of an 11.2 M sub([middot in circle]) star. By…”
Get full text
Journal Article -
9
Characteristic time variability of gravitational-wave and neutrino signals from three-dimensional simulations of non-rotating and rapidly rotating stellar core collapse
Published in Monthly notices of the Royal Astronomical Society (01-04-2021)“…ABSTRACT We present results from full general relativistic 3D hydrodynamics simulations of stellar core collapse of a 70 M⊙ star with spectral neutrino…”
Get full text
Journal Article -
10
Systematic features of axisymmetric neutrino-driven core-collapse supernova models in multiple progenitors
Published in Publications of the Astronomical Society of Japan (04-12-2015)“…We present an overview of two-dimensional (2D) core-collapse supernova simulations employing a neutrino transport scheme by the isotropic diffusion source…”
Get full text
Journal Article -
11
One-, Two-, and Three-dimensional Simulations of Oxygen-shell Burning Just before the Core Collapse of Massive Stars
Published in The Astrophysical journal (10-08-2019)“…We perform two- (2D) and three-dimensional (3D) hydrodynamics simulations of convective oxygen-shell burning that takes place deep inside a massive progenitor…”
Get full text
Journal Article -
12
Convection and Dynamo in Newly Born Neutron Stars
Published in The Astrophysical journal (01-01-2022)“…Abstract To study properties of magnetohydrodynamic (MHD) convection and resultant dynamo activities in proto-neutron stars (PNSs), we construct a “PNS in a…”
Get full text
Journal Article -
13
Long-term simulations of multi-dimensional core-collapse supernovae: Implications for neutron star kicks
Published in Publications of the Astronomical Society of Japan (01-10-2019)“…Abstract Core-collapse supernovae (CCSNe) are the final stage of massive stars, marking the birth of neutron stars (NSs). The aspherical mass ejection drives a…”
Get full text
Journal Article -
14
Monotonicity of the Cores of Massive Stars
Published in The Astrophysical journal (01-03-2023)“…Abstract Massive stars are linked to diverse astronomical processes and objects including star formation, supernovae and their remnants, cosmic rays,…”
Get full text
Journal Article -
15
A full general relativistic neutrino radiation-hydrodynamics simulation of a collapsing very massive star and the formation of a black hole
Published in Monthly notices of the Royal Astronomical Society. Letters (01-06-2018)“…Abstract We study the final fate of a very massive star by performing full general relativistic (GR), three-dimensional (3D) simulation with three-flavour…”
Get full text
Journal Article -
16
Impact of Neutrino Opacities on Core-collapse Supernova Simulations
Published in The Astrophysical journal (01-02-2018)“…The accurate description of neutrino opacities is central to both the core-collapse supernova (CCSN) phenomenon and the validity of the explosion mechanism…”
Get full text
Journal Article -
17
A Systematic Study on the Rise Time-Peak Luminosity Relation for Bright Optical Transients Powered by Wind Shock Breakout
Published in The Astrophysical journal (01-08-2020)“…A number of astrophysical transients originating from stellar explosions are powered by the collision of the ejected material with the circumstellar medium,…”
Get full text
Journal Article -
18
-
19
Extremely Energetic Supernova Explosions Embedded in a Massive Circumstellar Medium: The Case of SN 2016aps
Published in The Astrophysical journal (01-02-2021)“…We perform one-dimensional radiation-hydrodynamic simulations of energetic supernova (SN) ejecta colliding with a massive circumstellar medium (CSM) aimed at…”
Get full text
Journal Article -
20
IMPACTS OF ROTATION ON THREE-DIMENSIONAL HYDRODYNAMICS OF CORE-COLLAPSE SUPERNOVAE
Published in The Astrophysical journal (20-09-2014)“…We perform a series of simplified numerical experiments to explore how rotation impacts the three-dimensional (3D) hydrodynamics of core-collapse supernovae…”
Get full text
Journal Article