Igata Takahisa

イガタタカヒサ | Igata Takahisa

Affiliation and department：
Job title： Assistant Professor

Research field (1)： Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Research keywords (4)： symmetry , black hole , astrophysics , general relativity

Research theme for competitive and other funds (6)：

2024 - 2029 アインシュタイン方程式の幾何学-理論物理学と重力波天文学との邂逅-
2023 - 2027 Geometry of Gravitational Fields
2022 - 2026 Development of a theoretical framework for the identification of black holes
2019 - 2022 Symmetry and shadows of near extremal Kerr black holes
2014 - 2015 ブラックホールの観測的検証に向けたシャドウおよび光の偏光の解析

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Papers (45)：

Takahisa Igata, Tomohiro Harada, Hiromi Saida, Yohsuke Takamori. Periapsis shifts in dark matter distribution around a black hole. International Journal of Modern Physics D. 2023. 32. 16. 2350105
Tomohiro Harada, Takahisa Igata, Hiromi Saida, Yohsuke Takamori. General formulae for the periapsis shift of a quasi-circular orbit in static spherically symmetric spacetimes and the active gravitational mass density. International Journal of Modern Physics D. 2023. 32. 15. 2350098
Tomohiro Harada, Takahisa Igata, Sato, Takuma, Carr, Bernard. Complete classification of Friedmann-Lemaître-Robertson-Walker solutions with linear equation of state: parallelly propagated curvature singularities for general geodesics. Classical and Quantum Gravity. 2022. 39. 14. 145008
Takahisa Igata, Yohsuke Takamori. Periapsis shifts in dark matter distribution with a dense core. Physical Review D. 2022. 105. 12. 124029
Kota Ogasawara, Takahisa Igata. Photon escape in the extremal Kerr black hole spacetime. Physical Review D. 2022. 105. 2. 024031

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MISC (3)：

Shunichiro Kinoshita, Takahisa Igata. The Essence of The Blandford-Znajek Process. 2019. 74. 8. 542-547
Takahisa Igata, Hideki Ishihara, Yohsuke Takamori. Chaos in Geodesic Motion Around a Black Ring. The Thirteenth Marcel Grossmann Meeting. 2015
Takahisa Igata, Hideki Ishihara, Yohsuke Takamori. Stable Bound Orbits around Black Rings. Journal of Physics: Conference Series. 2011. 314. 012113-012113

Education (3)：

2009 - 2012 Osaka City University Graduate School of Science Mathematics and Physics Course
2007 - 2009 Osaka City University Graduate School of Science Mathematics and Physics Course
2003 - 2007 Osaka City University

Professional career (1)：

Doctor (Science) (Graduate School of Science, Osaka City University )

Work history (9)：

2022/04 - 現在 Gakushuin University Faculty of Science Department of Physics
2020/04 - 2022/03 High Energy Accelerator Research Organization Institute of Particle and Nuclear Studies, Theory Center
2019/04 - 2020/03 Rikkyo University
2015/04 - 2019/03 Rikkyo University
2014/04 - 2015/03 Kwansei Gakuin University Graduate School of Science and Technology

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Awards (2)：

2021/12 - Online JGRG Webinar Organizing Committee Outstanding Presentation Award Gold Prize Photon emission from inside the innermost stable circular orbit
2018/11 - The 28th Workshop on General Relativity and Gravitation in Japan JGRG presentation awards

Association Membership(s) (6)：

日本天文学会 , Japan Particle and Nuclear Theory Forum , Japan Gravitational Wave Community B会員 , 理論天文学宇宙物理学懇談会 , The Physical Society of Japan , General Relativity and Gravitation in Japan

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