934 citations · 6.2k across the 140 of their papers we have counts for
140 papers
Relativistic Hydrostatic Structure Equations and Analytic Multilayer Stellar Model
Shuichi Yokoyama
The relativistic extension of the classic stellar structure equations is investigated. It is pointed out that the Tolman-Oppenheimer-Volkov (TOV) equation with the gradient equatio…
Probing the mass relation between supermassive black holes and dark matter halos at high redshifts by gravitational wave experiments
Kazuya Furusawa, Hiroyuki Tashiro, Shuichiro Yokoyama +1
Numerous observations have shown that almost all galaxies in our Universe host supermassive black holes (SMBHs), but there is still much debate about their formation and evolutiona…
Local Thermodynamics and Entropy for Relativistic Hydrostatic Equilibrium
Shuichi Yokoyama
By refining the method proposed in arXiv:2010.07660, entropy current and entropy density for a relativistic hydrostatic equilibrium system with spherical symmetry are constructed a…
Probing the primordial Universe with 21-cm line from cosmic dawn/epoch of reionization
Teppei Minoda, Shohei Saga, Tomo Takahashi +4
In the most distant reaches of the Universe, the 21-cm hyperfine transition in neutral hydrogen provides one of the only available tracers of large-scale structure. A number of ins…
Cosmological gravity probes: connecting recent theoretical developments to forthcoming observations
Shun Arai, Katsuki Aoki, Yuji Chinone +20
Since the discovery of the accelerated expansion of the present Universe, significant theoretical developments have been made in the area of modified gravity. In the meantime, cosm…
Primordial black holes and gravitational waves induced by exponential-tailed perturbations
Katsuya T. Abe, Ryoto Inui, Yuichiro Tada +1
Primordial black holes (PBHs) whose masses are in have been extensively studied as a candidate of whole dark matter (DM). One of the probe…