137 citations
- Aristotle University of ThessalonikiGR1 paper
- Centre National de la Recherche ScientifiqueFR1 paper
- Chalmers University of TechnologySE1 paper
- Kyoto Prefectural Rakuhoku High SchoolJP1 paper
- Nicolaus Copernicus Astronomical CenterPL1 paper
- Okayama UniversityJP1 paper
- Osaka Kyoiku UniversityJP1 paper
- Universidad Nacional Autónoma de MéxicoMX1 paper
- Université Toulouse III - Paul SabatierFR1 paper
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9 papers
Homology and cohomology via enriched bifunctors
K. Shimakawa, K. Yoshida, T. Haraguchi
We show that the category of numerically generated pointed spaces is complete, cocomplete, and monoidally closed with respect to the smash product, and then utilize these features…
Frequency Correlations of QPOs Based on a Disk Oscillation Model in Warped Disks
Shoji Kato
In previous papers we proposed a model that high-frequency quasi-periodic oscillations (QPOs) observed in black-hole and neutron-star X-ray binaries are disk oscillations (inertial…
Spin of Stellar-Mass Black Holes Estimated by a Model of Quasi-Periodic Oscillations
Shoji Kato, Jun Fukue
We have proposed in previous papers that the high-frequency pair QPOs observed in black-hole binaries with frequency ratio 3:2 are inertial-acoustic oscillations (nearly horizontal…
A Vertical Resonances of G-Mode Oscillations in Warped Disks and QPOs in Low-Mass X-Ray Binaries
Shoji Kato
Resonant oscillations in warped disks are examined in order to explain high-frequency QPOs and horizontal-branch QPOs in low-mass X-ray binaries. Different from our previous work,…
Quasi-Periodic Oscillations Resonantly Induced on Spin-Induced Deformed-Disks of Neutron Stars
Shoji Kato
We consider the situation where a spin-induced wavy perturbation is present on disks of neutron-star low-mass X-ray binaries. By non-linearly coupling with the perturbation, some m…
A Resonance Model of Quasi-Periodic Oscillations of Low-Mass X-Ray Binaries
Shoji Kato
We try to understand the quasi-periodic oscillations (QPOs) in low-mass neutron-star and black-hole X-ray binaries by a resonance model in warped disks with precession. Our main co…