1994 Fiscal Year Annual Research Report

一般相対論と重力波の理論的研究

Research Project

Project/Area Number	06302021
Research Category	Grant-in-Aid for Co-operative Research (A)
Research Institution	Waseda University
Principal Investigator	前田恵一早稲田大学, 理工学部, 教授 (70199610)
Co-Investigator(Kenkyū-buntansha)	二間瀬敏史弘前大学, 理学部, 教授 (20209141) 富松彰名古屋大学, 理学部, 教授 (10034612) 佐々木節京都大学, 理学部, 助教授 (70162386) 江里口良治東京大学, 教養学部, 教授 (80175231) 石原秀樹京都大学, 総合人間学部, 助教授 (80183739)
Keywords	一般相対論 / 重力波 / 数値相対論 / 観測的宇宙論 / 素粒子統一理論 / 非一様時空 / ブラックホール / 中性子星
Research Abstract	現在は、観測・実験やシミュレーションの進展により、アインシュタインの一般相対論に対する関心が非常に集まっている時期と考えられる。本研究では、この機会を捕らえ、国内の一般相対論およびその周辺分野の一流研究者を集め、以下の3つの最重要課題を中心に共同研究を行い、一般相対論および重力波の基礎的理解を深め、相対論的物理学の新しい発展を図ることを目指している。 1.一般相対論における未解決問題の研究(解析的アプローチ:富松彰、小玉英雄、前田恵一・数値的アプローチ:中村卓史、江里口良治、大原健一、小嶌康史) 2.観測的宇宙論とその一般相対論的取り扱い(佐々木節、二間瀬敏史、石原秀樹、前田恵一) 3.素粒子統一理論と一般相対論の関連(吉村太彦、細谷暁夫、小玉英雄、前田恵一) 平成6年度は、各研究班は、まず現在までの研究成果を整理し、本研究において遂行すべき課題をリストアップした。研究課題1に関しては、未解決問題の整理と現在数値的相対論によりアプローチ可能な問題の設定、研究課題2では、非線型密度揺らぎの成長問題を、研究課題3に関しては、超ひも理論や超対称性を仮定したときの曲がった空間(宇宙やブラックフォール解)の古典的および量子論的問題点の整理から始めている。また、Ashtekar形式の実用性を課題1,3の両面で探っている。各研究分担内容に応じて個々の研究者およびその周辺の研究者、学生と共同研究を行っている段階であるが、研究課題1、2に関しては、いくつかのテーマに関し現在各研究グループでかなり進行しているものがあり、それらについて集中的に議論、共同研究を行うため、12月中旬竹原でワークショップを持った。また、一般相対論全般において現在日本全国で行われている研究を鳥瞰する目的として、従来の大研究会「一般相対論と重力」の第4回目を京都で11月末に、重点領域「重力波天文学」の研究班との共同開催で行った。

Research Products

(28 results)

All Other

All Publications (28 results)

[Publications] Y.Oshiro,K.Nakamura And A.Tomimatsu: "Critical Behavior of Black Hole Formation in a Scalar Wave Collapse" Prog.Theor.Phys.,. 91,No.6. 1265-1270 (1994)
[Publications] K.Hirotani and A.Tomimatsu: "Collimated Propagation of Magnetohydrodynamic Waves near to a Schwarzxchild Black Hole" Publ.Astron.Soc.Japan,. 46,No.6. 643-651 (1994)
[Publications] S.Nishida and Y.Eriguchi: "A General Relativistic Toroid Around A Black Hole" Astrophysical Journal,. 427,No.1. 429-437 (1994)
[Publications] K.Uryu and Y.Eriguchi: "Structures of Rapidly Rotating Baroclinic Stars I.A Numeical Method for the Angular Velocity Distributions" Monthly Notices of Royal Astronomical Society. 269,No.1. 14-32 (1994)
[Publications] M.Hashimoto,K.Oyamatsu and Y.Eriguchi: "Upper Limit of the Angular Velocity of Neutron Stars" Astrophysical Journal. 436,No.1. 257-261 (1994)
[Publications] S.Yoshida,Y.Eriguchi and T.Futamase: "Quasi-Normal Modes of Boson Stars" Physical Review. D50,No.10. 6235-6246 (1994)
[Publications] S.Yoshida and Y.Eriguchi: "Gravitational Radiation Driven Secular Instability of Rotating Polytropes" Astrophysical Journal. (in press). (1995)
[Publications] M.Hashimoto,Y.Eriguchi and E.Muller: "Equilibrium Structure of Self-gravitating Kepler Disk" Astronomy and Astrophysics. (in press). (1995)
[Publications] K.Sanbuichi,J.Fukue and Y.Kojima: "Emission Line Profiles of Accretion Disks with Non-axisymmetric Pattern" Publ.Astron.Soc.Japan,. 46,no.6. 605-611 (1994)
[Publications] Y.Kojima: "Early Growth of Cosmological Inhomogeneity at the Horizon Scale" Phys.Rev.D50,no.10. 6110-6114 (1994)
[Publications] K.Yamamoto and M.Sasaki: "Skewness of Cosmic Microwave Background Anisotropies in an Inflationary Isocurvature Baryon Model." Astrophys.J.435. L83-L85 (1994)
[Publications] H.Tagoshi and M.Sasaki: "Post-Newtonian Expansion of Gravitational Waves from a Particle in Circular Orbit around a Schwarzschild Black Hole." Prog.Theor.Phys.92. 745-771 (1994)
[Publications] T.Tanaka and M.Sasaki: "Quantum State During and After O(4)-Symmetric Bubble Nucleation with Gravitational Effects" Phys.Rev.D50.no.10. 6444-6456 (1994)
[Publications] H.Kodama,H.Ishihara and Y.Fujiwara: "Does a domain wall emit gravitational waves? General-relativistic perturbative analysis of a simple case." Phys.Rev.D50.no.12. 7292-7303 (1994)
[Publications] T.Futamase: "General Relativistic Description of Realistic Inhomogeneous Universe." Relativistic Cosmology,Proceedings of the 8th Nishinomiya-Yukawa Memorial Symposium,edited by M.Sasaki(Univ.Acad.Press,Japan). 99-110 (1994)
[Publications] Y.Kobayashi,M.Kasai,and T.Futamase: "Does a Bosn Star Rotate?" Phys.Rev.D50.no.12. 7721-7724 (1994)
[Publications] T.Futamase: "On the Validity of the Cosmological Lens Equation in General Relativity" Prog.Theor.Phys.(in press). (1995)
[Publications] K.Nakao,T.Shiromizu and K.Maeda: "Gravitational Mass in Asymptotically de Sitter Spacetimes" Class.Quantum Grav.11. 2059-2071 (1994)
[Publications] H.Shinkai and K.Maeda: "Generality of Inflation in a Planar Universe" Phys.Rev.D49.no.12. 6367-6378 (1994)
[Publications] M.Shibata,K.Nakao,T.Nakamura and K.Maeda: "Dynamical Evolution of Gravitational Waves in Asymptotically de Sitter Spacetime" Phys.Rev.D50.no.2. 708-719 (1994)
[Publications] T.Chiba and K.Maeda: "Cosmic Hoop Conjecture?" Phys.Rev.D50.no.8. 4903-4913 (1994)
[Publications] N.Sakai and K.Maeda: "Junction Conditions of Friedmann-Robertson-Walker Space-times" Phys.Rev.D50.no.8. 5425-5428 (1994)
[Publications] T.Torii,K.Maeda and T.Tachizawa: "Non-Abelian Black Holes and Catastrophe Theory I:Neutral Type" Phys.Rev.(in press). (1995)
[Publications] T.Tachizawa,K.Maeda and T.Torii: "Non-Abelian Black Holes and Catastrophe Theory II:Charged Type" Phys.Rev.(in press). (1995)
[Publications] L.Gurnnarsen,H.Shinkai and K.Maeda: "Finding Principal Null Directions for Numerical Relativists" Class,Quantum Grav.12. 133-140 (1995)
[Publications] T.Hirai and K.Maeda: "Gauge-invariant Cosmological Perturbations in Generalized Einstein Theories" Astrophys.J.431. 6-19 (1994)
[Publications] J.Koga and K.Maeda: "Superradiance around Rotating Dilatonic Black Holes" Phys.Lett.B340. 29-34 (1994)
[Publications] K.Maeda,et al: "Stability of Non-Abelian Black Holes and Catastrophe Theory" Phys.Rev.Lett.72. 450-45 (1994)

1994 Fiscal Year Annual Research Report

一般相対論と重力波の理論的研究

Principal Investigator

前田 恵一 早稲田大学, 理工学部, 教授 (70199610)

Research Products

[Publications] Y.Oshiro,K.Nakamura And A.Tomimatsu: "Critical Behavior of Black Hole Formation in a Scalar Wave Collapse" Prog.Theor.Phys.,. 91,No.6. 1265-1270 (1994)

[Publications] K.Hirotani and A.Tomimatsu: "Collimated Propagation of Magnetohydrodynamic Waves near to a Schwarzxchild Black Hole" Publ.Astron.Soc.Japan,. 46,No.6. 643-651 (1994)

[Publications] S.Nishida and Y.Eriguchi: "A General Relativistic Toroid Around A Black Hole" Astrophysical Journal,. 427,No.1. 429-437 (1994)

[Publications] K.Uryu and Y.Eriguchi: "Structures of Rapidly Rotating Baroclinic Stars I.A Numeical Method for the Angular Velocity Distributions" Monthly Notices of Royal Astronomical Society. 269,No.1. 14-32 (1994)

[Publications] M.Hashimoto,K.Oyamatsu and Y.Eriguchi: "Upper Limit of the Angular Velocity of Neutron Stars" Astrophysical Journal. 436,No.1. 257-261 (1994)

[Publications] S.Yoshida,Y.Eriguchi and T.Futamase: "Quasi-Normal Modes of Boson Stars" Physical Review. D50,No.10. 6235-6246 (1994)

[Publications] S.Yoshida and Y.Eriguchi: "Gravitational Radiation Driven Secular Instability of Rotating Polytropes" Astrophysical Journal. (in press). (1995)

[Publications] M.Hashimoto,Y.Eriguchi and E.Muller: "Equilibrium Structure of Self-gravitating Kepler Disk" Astronomy and Astrophysics. (in press). (1995)

[Publications] K.Sanbuichi,J.Fukue and Y.Kojima: "Emission Line Profiles of Accretion Disks with Non-axisymmetric Pattern" Publ.Astron.Soc.Japan,. 46,no.6. 605-611 (1994)

[Publications] Y.Kojima: "Early Growth of Cosmological Inhomogeneity at the Horizon Scale" Phys.Rev.D50,no.10. 6110-6114 (1994)

[Publications] K.Yamamoto and M.Sasaki: "Skewness of Cosmic Microwave Background Anisotropies in an Inflationary Isocurvature Baryon Model." Astrophys.J.435. L83-L85 (1994)

[Publications] H.Tagoshi and M.Sasaki: "Post-Newtonian Expansion of Gravitational Waves from a Particle in Circular Orbit around a Schwarzschild Black Hole." Prog.Theor.Phys.92. 745-771 (1994)

[Publications] T.Tanaka and M.Sasaki: "Quantum State During and After O(4)-Symmetric Bubble Nucleation with Gravitational Effects" Phys.Rev.D50.no.10. 6444-6456 (1994)

[Publications] H.Kodama,H.Ishihara and Y.Fujiwara: "Does a domain wall emit gravitational waves? General-relativistic perturbative analysis of a simple case." Phys.Rev.D50.no.12. 7292-7303 (1994)

[Publications] T.Futamase: "General Relativistic Description of Realistic Inhomogeneous Universe." Relativistic Cosmology,Proceedings of the 8th Nishinomiya-Yukawa Memorial Symposium,edited by M.Sasaki(Univ.Acad.Press,Japan). 99-110 (1994)

[Publications] Y.Kobayashi,M.Kasai,and T.Futamase: "Does a Bosn Star Rotate?" Phys.Rev.D50.no.12. 7721-7724 (1994)

[Publications] T.Futamase: "On the Validity of the Cosmological Lens Equation in General Relativity" Prog.Theor.Phys.(in press). (1995)

[Publications] K.Nakao,T.Shiromizu and K.Maeda: "Gravitational Mass in Asymptotically de Sitter Spacetimes" Class.Quantum Grav.11. 2059-2071 (1994)

[Publications] H.Shinkai and K.Maeda: "Generality of Inflation in a Planar Universe" Phys.Rev.D49.no.12. 6367-6378 (1994)

[Publications] M.Shibata,K.Nakao,T.Nakamura and K.Maeda: "Dynamical Evolution of Gravitational Waves in Asymptotically de Sitter Spacetime" Phys.Rev.D50.no.2. 708-719 (1994)

[Publications] T.Chiba and K.Maeda: "Cosmic Hoop Conjecture?" Phys.Rev.D50.no.8. 4903-4913 (1994)

[Publications] N.Sakai and K.Maeda: "Junction Conditions of Friedmann-Robertson-Walker Space-times" Phys.Rev.D50.no.8. 5425-5428 (1994)

[Publications] T.Torii,K.Maeda and T.Tachizawa: "Non-Abelian Black Holes and Catastrophe Theory I:Neutral Type" Phys.Rev.(in press). (1995)

[Publications] T.Tachizawa,K.Maeda and T.Torii: "Non-Abelian Black Holes and Catastrophe Theory II:Charged Type" Phys.Rev.(in press). (1995)

[Publications] L.Gurnnarsen,H.Shinkai and K.Maeda: "Finding Principal Null Directions for Numerical Relativists" Class,Quantum Grav.12. 133-140 (1995)

[Publications] T.Hirai and K.Maeda: "Gauge-invariant Cosmological Perturbations in Generalized Einstein Theories" Astrophys.J.431. 6-19 (1994)

[Publications] J.Koga and K.Maeda: "Superradiance around Rotating Dilatonic Black Holes" Phys.Lett.B340. 29-34 (1994)

[Publications] K.Maeda,et al: "Stability of Non-Abelian Black Holes and Catastrophe Theory" Phys.Rev.Lett.72. 450-45 (1994)

前田恵一早稲田大学, 理工学部, 教授 (70199610)