32 citations · 50 across the 22 of their papers we have counts for
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Cosmic Himalayas in CROCODILE : Probing the Extreme Quasar Overdensities by Count-in-Cells analysis and Nearest Neighbor Distribution
Yuto Kuwayama, Yongming Liang, Kentaro Nagamine +7
The recently reported Cosmic Himalayas (CH) -- an extreme quasar overdensity at z~2 -- poses an apparent challenge to the Lambda CDM framework, with a reported significance of 16.9…
Recombination Clumping Factor of Physically Defined Intergalactic Medium at the Epoch of Reionization
Yuri Oku, Renyue Cen
The recombination clumping factor, , is a key parameter in modeling cosmic reionization, but its value is sensitive to the definition of the Intergalactic Medium (IGM). We inves…
Probing the Cosmic Baryon Distribution and the Impact of Active Galactic Nuclei Feedback with Fast Radio Bursts in CROCODILE Simulation
Zhao Joseph Zhang, Kentaro Nagamine, Yuri Oku +6
We investigate the Missing Baryon problem using Fast Radio Bursts (FRBs) to trace cosmic baryons. Our CROCODILE simulations, performed with the GADGET3/4-OSAKA smoothed particle hy…
Lyman- forest power spectrum and its cross-correlation with dark matter halos in different astrophysical models
Koichiro Nakashima, Atsushi J. Nishizawa, Kentaro Nagamine +2
The Ly forest, a series of HI absorption lines in the quasar spectra, is a powerful tool for probing the large-scale structure of the intergalactic medium. Its three-dimensional…
The negative BAO shift in the Ly forest from cosmological simulations
Francesco Sinigaglia, Francisco-Shu Kitaura, Kentaro Nagamine +1
We present the first measurement of the Ly forest BAO shift parameter from cosmological simulations. In particular, we generate a suite of accurate effective field-level…
Field-level Lyman-alpha forest modelling in redshift space via augmented non-local Fluctuating Gunn-Peterson Approximation
Francesco Sinigaglia, Francisco-Shu Kitaura, Kentaro Nagamine +2
We present an improved analytical model to predict the Lyman-alpha forest at the field level in redshift space from the dark matter field, expanding upon the widely-used Fluctuatin…