256 citations · 2.5k across the 78 of their papers we have counts for
4 papers · 1 filter
Gravitational wave backgrounds from coalescing black hole binaries at cosmic dawn: an upper bound
Kohei Inayoshi, Kazumi Kashiyama, Eli Visbal +1
The successive discoveries of binary merger events by Advanced LIGO-Virgo have been revealing the statistical properties of binary black hole (BBH) populations. A stochastic gravit…
Detectability of Small-Scale Dark Matter Clumps with Pulsar Timing Arrays
Kazumi Kashiyama, Masamune Oguri
We examine the capability of pulsar timing arrays (PTAs) to detect very small-scale clumps of dark matter (DM), which are a natural outcome of the standard cold dark matter (CDM) p…
Large-scale clustering as a probe of the origin and the host environment of fast radio bursts
Masato Shirasaki, Kazumi Kashiyama, Naoki Yoshida
We propose to use degree-scale angular clustering of fast radio bursts (FRBs) to identify their origin and the host galaxy population. We study the information content in autocorre…
Enhanced exploration for primordial black holes using pulsar timing arrays
Kazumi. Kashiyama, Naoki. Seto
We investigate the capability of pulsar timing arrays (PTAs) as a probe of primordial black holes (PBHs), which might constitute the Galactic dark matter. A PBH passing nearby the…