output
20142023
most citedFirst M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon

683 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing gr-qcShow all

9 papers · 1 filter

gr-qc2021★ 12 cited

Backreaction of Mass and Angular Momentum Accretion on Black Holes: General Formulation of the Metric Perturbations and Application to the Blandford-Znajek Process

Masashi Kimura, Tomohiro Harada, Atsushi Naruko +1

We study the metric backreaction of mass and angular momentum accretion on black holes. We first develop the formalism of monopole and dipole linear gravitational perturbations aro…

gr-qc2020★ 50 cited

Spherically Symmetric Scalar Hair for Charged Black Holes

Jeong-Pyong Hong, Motoo Suzuki, Masaki Yamada

The no-hair theorem by Mayo and Bekenstein states that there exists no non-extremal static and spherical charged black hole endowed with hair in the form of a charged scalar field…

gr-qc2019★ 20 cited

Could the black hole singularity be a field singularity?

Guillem Domènech, Atsushi Naruko, Misao Sasaki +1

In the wake of interest to find black hole solutions with scalar hair, we investigate the effects of disformal transformations on static spherically symmetric space-times with a no…

gr-qc2018★ 9 cited

Effect of the self-gravity of shells on a high energy collision in a rotating Bañados-Teitelboim-Zanelli spacetime

Kota Ogasawara, Naoki Tsukamoto

We consider a collision of two dust thin shells with a high center-of-mass (CM) energy including their self-gravity in a Bañados-Teitelboim-Zanelli (BTZ) spacetime. The shells divi…

gr-qc2018★ 42 cited

Linear stability analysis of a rotating thin-shell wormhole

Naoki Tsukamoto, Takafumi Kokubu

We cut and paste two Banados-Teitelboim-Zanelli (BTZ) spacetimes at a throat by the Darmois-Israel method to construct a rotating wormhole with a thin shell filled with a barotropi…

gr-qc2018★ 4 cited

The effects of anisotropy and non-adiabaticity on the evolution of comoving curvature perturbation

Atsushi Naruko, Antonio Enea Romano, Misao Sasaki +1

We derive the equation for the evolution of the curvature perturbation on the comoving time slice, , in the presence of anisotropic and non-adiabatic terms in the en…

gr-qc2018★ 8 cited

Stable cosmological solutions in degenerate theory of gravity

Ryotaro Kase, Rampei Kimura, Atsushi Naruko +1

We study cosmological applications of extended vector-tensor theories, whose Lagrangians contain up to two derivatives with respect to metric and vector field. We derive background…

gr-qc2017★ 86 cited

Construction of KAGRA: an Underground Gravitational Wave Observatory

T. Akutsu, M. Ando, S. Araki +222

Major construction and initial-phase operation of a second-generation gravitational-wave detector KAGRA has been completed. The entire 3-km detector is installed underground in a m…

gr-qc2016

Higher order test of Lorentz invariance with an optical ring cavity

Yuta Michimura, Jake Guscott, Matthew Mewes +5

We have developed an apparatus to search for the higher-order Lorentz violation in photons by measuring the resonant frequency difference between two counterpropagating directions…