3 papers
astro-ph.IM2026
GREX-PLUS Science Book v2
PLUS Science Team, Shunsuke Baba, Sirio Belli +52
GREX-PLUS (Galaxy Reionization EXplorer and PLanetary Universe Spectrometer) is a mission candidate for a JAXA strategic L-class mission to be launched in the 2030s. Its primary sc…
astro-ph.HE2026
Forecasting Supermassive Black Hole Binary Gravitational Wave Probes: Prospects for Future Pulsar Timing Array and Space-Borne Detectors
Katsunori Kusakabe, Yoshiyuki Inoue, Daisuke Toyouchi +1
We present a comprehensive framework for predicting the detection prospects of supermassive black hole binaries (SMBHBs) by future gravitational wave (GW) observatories, examining…
astro-ph.HE2025
Coherence of Supermassive Black Hole Binary Demographics with the nHz Stochastic Gravitational Wave Background
Katsunori Kusakabe, Yoshiyuki Inoue, Daisuke Toyouchi
We present a refined estimation of the stochastic gravitational wave background (SGWB) based on observed dual active galactic nuclei (AGNs) together with AGN X-ray luminosity funct…