Masashi Kimura

Lecturer

Japan

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Masashi Kimura is a Lecturer at the Daiichi Institute of Technology, Japan. His research encompasses various aspects of black hole physics, including gravitational collapse, quasinormal mode frequencies, and the stability of black holes in scalar-tensor theories. Recent publications reflect his focus on spacetime dynamics and the interplay between gravitational phenomena and theoretical frameworks in astrophysics.

Articles (15)

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2025

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2024

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2024

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2024

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2024

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2023

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2022

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2022

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2022

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2022

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2021

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2021

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2021

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2020

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2020

Collaborators (4)

Hiroyuki Nakano

Professor

Ryukoku University

JAPAN

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Kazumasa Okabayashi

Yukawa Institute for Theoretical Physics, Kyoto University

JAPAN

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Kazufumi Takahashi

Yukawa Institute for Theoretical Physics, Kyoto University

JAPAN

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Hayato Motohashi

Associate Professor

Kogakuin University

JAPAN

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Masashi Kimura

Research Interests

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About

Articles (15)

Shadow formation in gravitational collapse: Redshift and blueshift by spacetime dynamics

Black hole ringdown from physically sensible initial value problem in higher-order scalar-tensor theories

Parametrized black hole quasinormal ringdown formalism for higher overtones

Gravitational mode mixing around black holes in scalar-tensor theories with parity-violating terms

Perturbative quasinormal mode frequencies

Vanishing Love numbers of black holes in general relativity: From spacetime conformal symmetry of a two-dimensional reduced geometry

Black hole perturbations in higher-order scalar–tensor theories: initial value problem and dynamical stability

Ladder operators and quasinormal modes in Bañados-Teitelboim-Zanelli black holes

Dynamical photon sphere and time evolving shadow around black holes with temporal accretion

Aretakis constants and instability in general spherically symmetric extremal black hole spacetimes: Higher multipole modes, late-time tails, and geometrical meanings

Spectral Problems for Quasinormal Modes of Black Holes

Backreaction of mass and angular momentum accretion on black holes: General formulation of metric perturbations and application to the Blandford–Znajek process

Revisiting the Aretakis constants and instability in two-dimensional anti–de Sitter spacetimes

Towards rotating noncircular black holes in string-inspired gravity

Semi-analytic expressions for quasinormal modes of slowly rotating Kerr black holes

Collaborators (4)

Hiroyuki Nakano

Kazumasa Okabayashi

Kazufumi Takahashi

Hayato Motohashi

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