Yuri Oku
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View article: The AGORA High-resolution Galaxy Simulations Comparison Project. VIII. Disk Formation and Evolution of Simulated Milky Way Mass Galaxy Progenitors at 1 < <i>z</i> < 5
The AGORA High-resolution Galaxy Simulations Comparison Project. VIII. Disk Formation and Evolution of Simulated Milky Way Mass Galaxy Progenitors at 1 < <i>z</i> < 5 Open
We investigate how differences in the stellar feedback produce disks with different morphologies in Milky Way–like progenitors over 1 ≤ z ≤ 5, using eight state-of-the-art cosmological hydrodynamics simulation codes in the AGORA project. I…
View article: Probing the Cosmic Baryon Distribution and the Impact of Active Galactic Nuclei Feedback with Fast Radio Bursts in CROCODILE Simulation
Probing the Cosmic Baryon Distribution and the Impact of Active Galactic Nuclei Feedback with Fast Radio Bursts in CROCODILE Simulation Open
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 hydrodynamics code, include star formation, supernova, and ac…
View article: AGN jet evolution simulation with GADGET4-OSAKA
AGN jet evolution simulation with GADGET4-OSAKA Open
Active galactic nuclei (AGN) jets are powerful drivers of galaxy evolution, depositing energy and momentum into the circumgalactic and intracluster medium (CGM/ICM) and regulating gas cooling and star formation. We investigate the dynamics…
View article: The AGORA High-resolution Galaxy Simulations Comparison Project. VIII: Disk Formation and Evolution of Simulated Milky Way Mass Galaxy Progenitors at $1
The AGORA High-resolution Galaxy Simulations Comparison Project. VIII: Disk Formation and Evolution of Simulated Milky Way Mass Galaxy Progenitors at $1 Open
We investigate how differences in the stellar feedback produce disks with different morphologies in Milky Way-like progenitors over 1 $\leq z \leq 5$, using eight state-of-the-art cosmological hydrodynamics simulation codes in the \textit{…
View article: Lyman-α forest power spectrum and its cross-correlation with dark matter haloes in different astrophysical models
Lyman-α forest power spectrum and its cross-correlation with dark matter haloes in different astrophysical models Open
The $\mathrm{Ly}\,\alpha$ forest, a series of H i absorption lines in the quasar spectra, is a powerful tool for probing the large-scale structure of the intergalactic medium. Its three-dimensional (3D) correlation and cross-correlations w…
View article: Osaka Feedback Model. III. Cosmological Simulation CROCODILE
Osaka Feedback Model. III. Cosmological Simulation CROCODILE Open
We introduce our new cosmological simulation data set CROCODILE, executed using the GADGET4-Osaka smoothed particle hydrodynamics code. This simulation incorporates an updated supernova (SN) feedback model of Y. Oku et al. and an active ga…
View article: Lyman-$α$ forest power spectrum and its cross-correlation with dark matter halos in different astrophysical models
Lyman-$α$ forest power spectrum and its cross-correlation with dark matter halos in different astrophysical models Open
The Ly$α$ 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 (3D) correlation and cross-correlations with quasars allow…
View article: The Negative Baryon Acoustic Oscillation Shift in the Lyα Forest from Cosmological Simulations
The Negative Baryon Acoustic Oscillation Shift in the Lyα Forest from Cosmological Simulations Open
We present the first measurement of the Ly α forest baryon acoustic oscillations (BAO) shift parameter from cosmological simulations. In particular, we generate a suite of 1000 accurate effective field-level bias-based Ly α forest simulati…
View article: Observational signatures of the dust size evolution in isolated galaxy simulations
Observational signatures of the dust size evolution in isolated galaxy simulations Open
Aims . We aim to provide observational signatures of the dust size evolution in the interstellar medium. In particular, we explore indicators of the polycyclic aromatic hydrocarbon (PAH) mass fraction ( q PAH ), defined as the mass fractio…
View article: The negative BAO shift in the Ly$α$ forest from cosmological simulations
The negative BAO shift in the Ly$α$ forest from cosmological simulations Open
We present the first measurement of the Ly$α$ forest BAO shift parameter from cosmological simulations. In particular, we generate a suite of $1000$ accurate effective field-level bias-based Ly$α$ forest simulations of volume $V=(1 \, h^{-…
View article: Osaka Feedback Model III: Cosmological Simulation CROCODILE
Osaka Feedback Model III: Cosmological Simulation CROCODILE Open
We introduce our new cosmological simulation dataset CROCODILE, executed using the GADGET4-Osaka smoothed particle hydrodynamics code. This simulation incorporates an updated supernova (SN) feedback model of Oku et al. (2022) and an active…
View article: Field-level Lyman-alpha forest modelling in redshift space via augmented non-local Fluctuating Gunn-Peterson Approximation
Field-level Lyman-alpha forest modelling in redshift space via augmented non-local Fluctuating Gunn-Peterson Approximation Open
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 Fluctuating Gunn-Peterson approximation (FGPA). In particular, we int…
View article: Osaka Feedback Model. II. Modeling Supernova Feedback Based on High-resolution Simulations
Osaka Feedback Model. II. Modeling Supernova Feedback Based on High-resolution Simulations Open
Feedback from supernovae (SNe) is an essential mechanism that self-regulates the growth of galaxies, and a better model of SN feedback is still needed in galaxy-formation simulations. In the first part of this paper, using an Eulerian hydr…
View article: Osaka Feedback Model II: Modeling Supernova Feedback Based on High-Resolution Simulations
Osaka Feedback Model II: Modeling Supernova Feedback Based on High-Resolution Simulations Open
Feedback from supernovae (SNe) is an essential mechanism that self-regulates the growth of galaxies, and a better model of SN feedback is still needed in galaxy formation simulations. In the first part of this paper, using an Eulerian hydr…
View article: Osaka Feedback Model II: Modeling Supernova Feedback Based on High-Resolution Simulations
Osaka Feedback Model II: Modeling Supernova Feedback Based on High-Resolution Simulations Open
Feedback from supernovae (SNe) is an essential mechanism that self-regulates the growth of galaxies. We build an SN feedback model based on high-resolution simulations of superbubble and SN-driven outflows for the physical understanding of…