624 citations · 9k across the 85 of their papers we have counts for
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Forecasting Tidal Disruption Events by Binary Black Hole Roulettes
Naoki Seto, Koutarou Kyutoku
We discuss the gravitational wave emission and the orbital evolution of a hierarchical triple system composed of an inner binary black hole (BBH) and an outer tertiary. Depending o…
Gravitational-wave cosmography with LISA and the Hubble tension
Koutarou Kyutoku, Naoki Seto
We propose that stellar-mass binary black holes like GW150914 will become a tool to explore the local Universe within ~100Mpc in the era of the Laser Interferometer Space Antenna (…
Concise estimate of the expected number of detections for stellar-mass binary black holes by eLISA
Koutarou Kyutoku, Naoki Seto
We study prospects for detecting extragalactic binary black holes similar to GW150914 by evolved Laser Interferometer Space Antenna (eLISA). We find that the majority of detected b…
Dynamical mass ejection from the merger of asymmetric binary neutron stars: Radiation-hydrodynamics study in general relativity
Yuichiro Sekiguchi, Kenta Kiuchi, Koutarou Kyutoku +2
We perform neutrino radiation-hydrodynamics simulations for the merger of asymmetric binary neutron stars in numerical relativity. Neutron stars are modeled by soft and moderately…
Measurability of the tidal deformability by gravitational waves from coalescing binary neutron stars
Kenta Hotokezaka, Koutarou Kyutoku, Yu-ichiro Sekiguchi +1
Combining new gravitational waveforms derived by long-term (14--16 orbits) numerical-relativity simulations with waveforms by an effective-one-body (EOB) formalism for coalescing b…
The unreasonable weakness of r-process cosmic rays in the neutron-star-merger nucleosynthesis scenario
Koutarou Kyutoku, Kunihito Ioka
We reach the robust conclusion that, by combining the observed cosmic rays of r-process elements with the fact that the velocity of the neutron-star-merger ejecta is much higher th…