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University of the Ryukyus: Nishihara, Okinawa, JP

Professor (Physics)
Employment
Source: Self-asserted source
Koji Uryu

Works (50 of 68)

Items per page:
Page 1 of 2

The Parallel Compact Object CALculator: An Efficient General Relativistic Initial Data Solver for Compact Objects

Universe
2024-05-20 | Journal article
Contributors: Lambros Boukas; Antonios Tsokaros; Kōji Uryū
Source: check_circle
Crossref
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Preferred source (of 2)‎

General Relativistic Stability and Gravitational Wave Content of Rotating Triaxial Neutron Stars

Symmetry
2024-03-13 | Journal article
Contributors: Yufeng Luo; Antonios Tsokaros; Roland Haas; Kōji Uryū
Source: check_circle
Crossref

Equilibriums of extremely magnetized compact stars with force-free magnetotunnels

Physical Review D
2023-05-09 | Journal article
Contributors: Kōji Uryū; Shijun Yoshida; Eric Gourgoulhon; Charalampos Markakis; Kotaro Fujisawa; Antonios Tsokaros; Keisuke Taniguchi; Mina Zamani
Source: check_circle
Crossref

Evolution of equal mass binary bare quark stars in full general relativity: Could a supramassive merger remnant experience prompt collapse?

Physical Review D
2022-11-23 | Journal article
Contributors: Enping Zhou; Kenta Kiuchi; Masaru Shibata; Antonios Tsokaros; Kōji Uryū
Source: check_circle
Crossref

Magnetohydrodynamic Simulations of Self-Consistent Rotating Neutron Stars with Mixed Poloidal and Toroidal Magnetic Fields

Physical Review Letters
2022-02-08 | Journal article
Part of ISSN: 0031-9007
Part of ISSN: 1079-7114
Source: Self-asserted source
Koji Uryu
grade
Preferred source (of 2)‎

Evolution of bare quark stars in full general relativity: Single star case

Physical Review D
2021-06-08 | Journal article
Part of ISSN: 2470-0010
Part of ISSN: 2470-0029
Source: Self-asserted source
Koji Uryu

Great Impostors: Extremely Compact, Merging Binary Neutron Stars in the Mass Gap Posing as Binary Black Holes

Physical Review Letters
2020-02-21 | Journal article
Part of ISSN: 0031-9007
Part of ISSN: 1079-7114
Source: Self-asserted source
Koji Uryu

Complete initial value spacetimes containing black holes in general relativity: Application to black hole-disk systems

Physical Review D
2019 | Journal article
EID:

2-s2.0-85062336549

Contributors: Tsokaros, A.; Uryu, K.; Shapiro, S.L.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Differentially rotating strange star in general relativity

Physical Review D
2019 | Journal article
EID:

2-s2.0-85072181423

Contributors: Zhou, E.; Tsokaros, A.; Uryū, K.; Xu, R.; Shibata, M.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Dynamically Stable Ergostars Exist: General Relativistic Models and Simulations

Physical Review Letters
2019 | Journal article
EID:

2-s2.0-85076561986

Contributors: Tsokaros, A.; Ruiz, M.; Sun, L.; Shapiro, S.L.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

New code for equilibriums and quasiequilibrium initial data of compact objects. IV. Rotating relativistic stars with mixed poloidal and toroidal magnetic fields

Physical Review D
2019-12-19 | Journal article
Part of ISSN: 2470-0010
Part of ISSN: 2470-0029
Source: Self-asserted source
Koji Uryu

Effect of spin on the inspiral of binary neutron stars

Physical Review D
2019-07-29 | Journal article
Part of ISSN: 2470-0010
Part of ISSN: 2470-0029
Source: Self-asserted source
Koji Uryu

Constant circulation sequences of binary neutron stars and their spin characterization

Physical Review D
2018 | Journal article
EID:

2-s2.0-85059393900

Contributors: Tsokaros, A.; Uryu, K.; Ruiz, M.; Shapiro, S.L.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Rotating quark stars in general relativity

Universe
2018 | Journal article
EID:

2-s2.0-85064395570

Contributors: Zhou, E.; Tsokaros, A.; Rezzolla, L.; Xu, R.; Uryū, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Uniformly rotating, axisymmetric, and triaxial quark stars in general relativity

Physical Review D
2018 | Journal article
EID:

2-s2.0-85042138320

Contributors: Zhou, E.; Tsokaros, A.; Rezzolla, L.; Xu, R.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Conservation laws and evolution schemes in geodesic, hydrodynamic, and magnetohydrodynamic flows

Physical Review D
2017 | Journal article
EID:

2-s2.0-85031717851

Contributors: Markakis, C.; Uryu, K.; Gourgoulhon, E.; Nicolas, J.-P.; Andersson, N.; Pouri, A.; Witzany, V.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Gravitational wave content and stability of uniformly, rotating, triaxial neutron stars in general relativity

Physical Review D
2017 | Journal article
EID:

2-s2.0-85022345623

Contributors: Tsokaros, A.; Ruiz, M.; Paschalidis, V.; Shapiro, S.L.; Baiotti, L.; Uryū, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Modeling differential rotations of compact stars in equilibriums

Physical Review D
2017 | Journal article
EID:

2-s2.0-85037149632

Contributors: Uryū, K.; Tsokaros, A.; Baiotti, L.; Galeazzi, F.; Taniguchi, K.; Yoshida, S.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Do triaxial supramassive compact stars exist?

Physical Review D
2016 | Journal article
EID:

2-s2.0-84998981090

Contributors: Uryu, K.; Tsokaros, A.; Baiotti, L.; Galeazzi, F.; Sugiyama, N.; Taniguchi, K.; Yoshida, S.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Initial-data contribution to the error budget of gravitational waves from neutron-star binaries

Physical Review D
2016 | Journal article
EID:

2-s2.0-84984905665

Contributors: Tsokaros, A.; Mundim, B.C.; Galeazzi, F.; Rezzolla, L.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

New code for equilibriums and quasiequilibrium initial data of compact objects. III. Axisymmetric and triaxial rotating stars

Physical Review D
2016 | Journal article
EID:

2-s2.0-84960156398

Contributors: Uryu, K.; Tsokaros, A.; Galeazzi, F.; Hotta, H.; Sugimura, M.; Taniguchi, K.; Yoshida, S.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

New code for quasiequilibrium initial data of binary neutron stars: Corotating, irrotational, and slowly spinning systems

Physical Review D - Particles, Fields, Gravitation and Cosmology
2015 | Journal article
EID:

2-s2.0-84934878802

Contributors: Tsokaros, A.; Uryu, K.; Rezzolla, L.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Equilibrium solutions of relativistic rotating stars with mixed poloidal and toroidal magnetic fields

Physical Review D - Particles, Fields, Gravitation and Cosmology
2014 | Journal article
EID:

2-s2.0-84911940209

Contributors: Uryu, K.; Gourgoulhon, E.; Markakis, C.M.; Fujisawa, K.; Tsokaros, A.; Eriguchi, Y.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Binary black hole circular orbits computed with cocal

Journal of Engineering Mathematics
2013 | Journal article
EID:

2-s2.0-84884703008

Contributors: Tsokaros, A.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Inferring the neutron star equation of state from binary inspiral waveforms

12th Marcel Grossmann Meeting on Recent Dev. in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Proc. of the MG 2009 Meeting on General Relativity
2012 | Conference paper
EID:

2-s2.0-84885571326

Contributors: Markakis, C.; Read, J.S.; Shibata, M.; Uryu, K.; Creighton, J.D.E.; Friedman, J.L.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

New code for equilibriums and quasiequilibrium initial data of compact objects

Physical Review D - Particles, Fields, Gravitation and Cosmology
2012 | Journal article
EID:

2-s2.0-84858028177

Contributors: Uryu, K.; Tsokaros, A.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

New code for equilibriums and quasiequilibrium initial data of compact objects. II. Convergence tests and comparisons of binary black hole initial data

Physical Review D - Particles, Fields, Gravitation and Cosmology
2012 | Journal article
EID:

2-s2.0-84868575410

Contributors: Uryu, K.; Tsokaros, A.; Grandclément, P.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Magnetohydrodynamics in stationary and axisymmetric spacetimes: A fully covariant approach

Physical Review D - Particles, Fields, Gravitation and Cosmology
2011 | Journal article
EID:

2-s2.0-79960780690

Contributors: Gourgoulhon, E.; Markakis, C.; Uryu, K.; Eriguchi, Y.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Quasi-equilibrium models of magnetized compact objects

Journal of Physics: Conference Series
2011 | Conference paper
EID:

2-s2.0-79953747592

Contributors: Markakis, C.; Uryu, K.; Gourgoulhon, E.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Magnetized binary black holes and neutron stars in equiliblium

Proceedings of the 20th Workshop on General Relativity and Gravitation in Japan, JGRG 2010
2010 | Conference paper
EID:

2-s2.0-84887452202

Contributors: Uryu, K.; Gourgoulhon, E.; Markakis, C.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Thermodynamics of magnetized binary compact objects

Physical Review D - Particles, Fields, Gravitation and Cosmology
2010 | Journal article
EID:

2-s2.0-78651312846

Contributors: Uryu, K.; Gourgoulhon, E.; Markakis, C.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Measuring the neutron star equation of state with gravitational wave observations

Physical Review D - Particles, Fields, Gravitation and Cosmology
2009 | Journal article
EID:

2-s2.0-67649878794

Contributors: Read, J.S.; Markakis, C.; Shibata, M.; Uryu, K.; Creighton, J.D.E.; Friedman, J.L.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Nonconformally flat initial data for binary compact objects

Physical Review D - Particles, Fields, Gravitation and Cosmology
2009 | Journal article
EID:

2-s2.0-73449116361

Contributors: Uryu, K.; Limousin, F.; Friedman, J.L.; Gourgoulhon, E.; Shibata, M.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Merger of black hole and neutron star in general relativity

AIP Conference Proceedings
2008 | Conference paper
EID:

2-s2.0-72349098562

Contributors: Shibata, M.; Taniguchi, K.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Quasiequilibrium models for triaxially deformed rotating compact stars

Physical Review D - Particles, Fields, Gravitation and Cosmology
2008 | Journal article
EID:

2-s2.0-58949096131

Contributors: Huang, X.; Markakis, C.; Sugiyama, N.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Circular solution of two unequal mass particles in post-Minkowski approximation

Physical Review D - Particles, Fields, Gravitation and Cosmology
2007 | Journal article
EID:

2-s2.0-34447290825

Contributors: Glenz, M.M.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Merger of black hole-neutron star binaries in full general relativity

Classical and Quantum Gravity
2007 | Journal article
EID:

2-s2.0-34249984771

Contributors: Shibata, M.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Numerical method for binary black hole/neutron star initial data: Code test

Physical Review D - Particles, Fields, Gravitation and Cosmology
2007 | Journal article
EID:

2-s2.0-33847379042

Contributors: Tsokaros, A.A.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Numerical method for solving the initial value problem for binary systems

Journal of Physics: Conference Series
2007 | Conference paper
EID:

2-s2.0-34250874661

Contributors: Tsokaros, A.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Binary neutron stars: Equilibrium models beyond spatial conformal flatness

Physical Review Letters
2006 | Journal article
EID:

2-s2.0-33750442904

Contributors: Uryu, K.; Limousin, F.; Friedman, J.L.; Gourgoulhon, E.; Shibata, M.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Merger of black hole-neutron star binaries: Nonspinning black hole case

Physical Review D - Particles, Fields, Gravitation and Cosmology
2006 | Journal article
EID:

2-s2.0-33845788802

Contributors: Shibata, M.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Models of helically symmetric binary systems

Classical and Quantum Gravity
2006 | Journal article
EID:

2-s2.0-33746607343

Contributors: Yoshida, S.; Bromley, B.C.; Read, J.S.; Uryu, K.; Friedman, J.L.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Post-Minkowski action for point particles and a helically symmetric binary solution

Physical Review D - Particles, Fields, Gravitation and Cosmology
2006 | Journal article
EID:

2-s2.0-33744541862

Contributors: Friedman, J.L.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Merger of binary neutron stars with realistic equations of state in full general relativity

Physical Review D - Particles, Fields, Gravitation and Cosmology
2005 | Journal article
EID:

2-s2.0-18444413536

Contributors: Shibata, M.; Taniguchi, K.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Deriving formulations for numerical computation of binary neutron stars in quasicircular orbits

Physical Review D - Particles, Fields, Gravitation and Cosmology
2004 | Journal article
EID:

2-s2.0-37649032291

Contributors: Shibata, M.; Uryu, K.; Friedman, J.L.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Erratum: Deriving formulations for numerical computation of binary neutron stars in quasicircular orbits (Physical Review D - Particles, Fields, Gravitation and Cosmology (2004) 70 (044044))

Physical Review D - Particles, Fields, Gravitation and Cosmology
2004 | Journal article
EID:

2-s2.0-12744274686

Contributors: Shibata, M.; Uryu, K.; Friedman, J.L.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Erratum: Thermodynamics of binary black holes and neutron stars (Physical Review D - Particles, Fields, Gravitation and Cosmology (2002) 65 (064035))

Physical Review D - Particles, Fields, Gravitation and Cosmology
2004 | Journal article
EID:

2-s2.0-12744255071

Contributors: Friedman, J.L.; Uryu, K.; Shibata, M.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

The influence of quark matter at high densities on binary neutron star mergers

Monthly Notices of the Royal Astronomical Society
2004 | Journal article
EID:

2-s2.0-2142776679

Contributors: Oechslin, R.; Uryu, K.; Poghosyan, G.; Thielemann, F.K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Merger of binary neutron stars of unequal mass in full general relativity

Physical Review D
2003 | Journal article
EID:

2-s2.0-0344875131

Contributors: Shibata, M.; Taniguchi, K.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier

Quark matter in neutron star mergers

Nuclear Physics A
2003 | Journal article
EID:

2-s2.0-0037572134

Contributors: Oechslin, R.; Poghosyan, G.; Uryu, K.
Source: Self-asserted source
Koji Uryu via Scopus - Elsevier
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