84 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Kyoto UniversityJP12 papers
- National Institute of TechnologyJP11 papers
- Hitachi (Japan)JP10 papers
- Ibaraki National College of TechnologyJP10 papers
- Nagoya UniversityJP8 papers
- Goddard Space Flight CenterUS7 papers
- High Energy Accelerator Research OrganizationJP7 papers
- Kanagawa UniversityJP7 papers
- Aoyama Gakuin UniversityJP6 papers
- Ibaraki UniversityJP6 papers
- Institute of Space and Astronautical ScienceJP6 papers
- Japan Aerospace Exploration AgencyJP6 papers
33 papers
Strong deflection of massive particles via the geodesic deviation equation
Takahisa Igata, Yohsuke Takamori
We develop a formulation of the strong deflection limit for the scattering of particles following timelike geodesics in asymptotically flat, static, and spherically symmetric space…
Turing patterns on polymerized membranes: a coarse-grained lattice modelling with internal degree of freedom for polymer direction
F. Kato, H. Koibuchi, E. Bretin +6
We numerically study Turing patterns (TPs) on two-dimensional surfaces with a square boundary in using a surface model for polymerized membranes. The variables used to…
Nonspherical Pauli-forbidden states in deformed halo nuclei: Impact on the resonant states in the particle rotor model
Shin Watanabe, Antonio M. Moro
Background: An important aspect of reducing nuclear many-body problems to few-body models is the presence of Pauli forbidden (PF) states, which are excluded in fully antisymmetrize…
Investigation of the determination of nuclear deformation using high-energy heavy-ion scattering
Shin Watanabe, Takenori Furumoto, Wataru Horiuchi +2
Background: Nuclear deformation provides a crucial characteristic of nuclear structure. Conventionally, the quadrupole deformation length of a nucleus, , has often been dete…
Uncovering the sign of nuclear deformations: Determination of prolate or oblate shape via low-energy inelastic scattering
Shin Watanabe, Yoshiki Suzuki, Masaaki Kimura +1
Background: Understanding nuclear shape is a crucial problem in nuclear physics. In particular, determining the sign of quadrupole deformation, i.e., whether prolate or oblate, rem…
Generation mechanism and beaming of Jovian nKOM from 3D numerical modeling of Juno/Waves observations
Adam Boudouma, Philippe Zarka, Corentin Louis +2
The narrowband kilometric radiation (nKOM) is a Jovian low-frequency radio component identified as a plasma emission produced in the region of the Io plasma torus. Measurements fro…
Direct Measurement of the Spectral Structure of Cosmic-Ray Electrons+Positrons in the TeV Region with CALET on the International Space Station
O. Adriani, Y. Akaike, K. Asano +77
Detailed measurements of the spectral structure of cosmic-ray electrons and positrons from 10.6 GeV to 7.5 TeV are presented from over 7 years of observations with the CALorimetric…
Black hole ringdown from physically sensible initial value problem in higher-order scalar-tensor theories
Keisuke Nakashi, Masashi Kimura, Hayato Motohashi +1
We study odd-parity perturbations about static and spherically symmetric black hole solutions with a linearly time-dependent scalar field in higher-order scalar-tensor theories. In…
Charge-Sign Dependent Cosmic-Ray Modulation Observed with the Calorimetric Electron Telescope on the International Space Station
O. Adriani, Y. Akaike, K. Asano +77
We present the observation of a charge-sign dependent solar modulation of galactic cosmic rays (GCRs) with the CALorimetric Electron Telescope onboard the International Space Stati…
A relativistic two-stream instability in an extremely low-density plasma
Shinji Koide, Masaaki Takahashi, Rohta Takahashi
A linear analysis based on two-fluid equations in the approximation of a cold plasma, wherein the plasma temperature is assumed to be zero, demonstrates that a two-stream instabili…
Direct Measurement of the Cosmic-Ray Helium Spectrum from 40 GeV to 250 TeV with the Calorimetric Electron Telescope on the International Space Station
O. Adriani, Y. Akaike, K. Asano +77
We present the results of a direct measurement of the cosmic-ray helium spectrum with the CALET instrument in operation on the International Space Station since 2015. The observati…
The Io, Europa and Ganymede auroral footprints at Jupiter in the ultraviolet: positions and equatorial lead angles
Vincent Hue, Randy Gladstone, Corentin K. Louis +16
Jupiter's satellite auroral footprints are a consequence of the interaction between the Jovian magnetic field with co-rotating iogenic plasma and the Galilean moons. The disturbanc…
Spatially Resolving Electron Spin Resonance of -Radical in Single-molecule Magnet
Ryo Kawaguchi, Katsushi Hashimoto, Toshiyuki Kakudate +3
The spintronic properties of magnetic molecules have attracted significant scientific attention. Special emphasis has been placed on the qubit for quantum information processing. T…
General formulae for the periapsis shift of a quasi-circular orbit in static spherically symmetric spacetimes and the active gravitational mass density
Tomohiro Harada, Takahisa Igata, Hiromi Saida +1
We study the periapsis shift of a quasi-circular orbit in general static spherically symmetric spacetimes. We derive two formulae in full order with respect to the gravitational fi…
Observation of Spectral Structures in the Flux of Cosmic-Ray Protons from 50 GeV to 60 TeV with the Calorimetric Electron Telescope on the International Space Station
O. Adriani, Y. Akaike, K. Asano +77
A precise measurement of the cosmic-ray proton spectrum with the Calorimetric Electron Telescope (CALET) is presented in the energy interval from 50 GeV to 60 TeV, and the observat…
Monte Carlo studies of skyrmion stabilization under geometric confinement and uniaxial strain
G. Diguet, B. Ducharne, S. El Hog +4
Geometric confinement (GC) of skyrmions in nanodomains plays a crucial role in skyrmion stabilization. This confinement effect decreases the magnetic field necessary for skyrmion f…
CALET Search for electromagnetic counterparts of gravitational waves during the LIGO/Virgo O3 run
O. Adriani, Y. Akaike, K. Asano +78
The CALorimetric Electron Telescope (CALET) on the International Space Station (ISS) consists of a high-energy cosmic ray CALorimeter (CAL) and a lower-energy CALET Gamma ray Burst…
Advances in honeycomb layered oxides: Part I -- Syntheses and Characterisations of Pnictogen- and Chalcogen-Based Honeycomb Layered Oxides
Godwill Mbiti Kanyolo, Titus Masese, Abbas Alshehabi +1
Advancements in nanotechnology continue to unearth material vistas that presage a new age of revolutionary functionalities replete with unparalleled physical properties and avant-g…
Black hole perturbations in higher-order scalar-tensor theories: initial value problem and dynamical stability
Keisuke Nakashi, Masashi Kimura, Hayato Motohashi +1
We propose a physically sensible formulation of initial value problem for black hole perturbations in higher-order scalar-tensor theories. As a first application, we study monopole…
Periapsis shifts in dark matter distribution with a dense core
Takahisa Igata, Yohsuke Takamori
We consider the periapsis shifts in dark matter distribution with a dense core. We model the dark matter distribution as an isotropic gas sphere, the Emden polytropic sphere of ind…
Periapsis shifts in dark matter distribution around a black hole
Takahisa Igata, Tomohiro Harada, Hiromi Saida +1
We consider the periapsis shifts of bound orbits of stars on static clouds around a black hole. The background spacetime is constructed from a Schwarzschild black hole surrounded b…
Gate tuning of fractional quantum Hall states in InAs two-dimensional electron gas
S. Komatsu, H. Irie, T. Akiho +3
We report the observation of fractional quantum Hall (FQH) effects in a two-dimensional electron gas (2DEG) confined to an InAs/AlGaSb quantum well, using a dual-gated Hall-bar dev…
Honeycomb Layered Oxides With Silver Atom Bilayers and Emergence of Non-Abelian SU(2) Interactions
Titus Masese, Godwill Mbiti Kanyolo, Yoshinobu Miyazaki +15
Honeycomb layered oxides with monovalent or divalent, monolayered cationic lattices generally exhibit myriad crystalline features encompassing rich electrochemistry, geometries and…
Testing the Non-circularity of the Spacetime around Sagittarius A* with Orbiting Pulsars
Yohsuke Takamori, Atsushi Naruko, Yusuke Sakurai +3
A disformal Kerr black hole solution is a rotating black hole solution in a modified gravity theory which breaks the circular condition of spacetime differently from the case of th…