Výsledky vyhledávání - "Jung, Minyong"

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Inferring Cosmological Parameters on SDSS via Domain-Generalized Neural Networks and Lightcone Simulations

Autor: Lee, Jun-Young, Kim, Ji-hoon, Jung, Minyong, Oh, Boon Kiat, Jo, Yongseok, Park, Songyoun, Lee, Jaehyun, Ting, Yuan-Sen, Hwang, Ho Seong

We present a proof-of-concept simulation-based inference on $\Omega_{\rm m}$ and $\sigma_{8}$ from the SDSS BOSS LOWZ NGC catalog using neural networks and domain generalization techniques without the need of summary statistics. Using rapid lightcone

Externí odkaz: http://arxiv.org/abs/2409.02256

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The AGORA high-resolution galaxy simulations comparison project: CosmoRun data release

Autor: Roca-Fàbrega, Santi, Kim, Ji-hoon, Primack, Joel R., Genina, Anna, Jung, Minyong, Lupi, Alessandro, Nagamine, Kentaro, Powell, Johnny W., Quinn, Thomas R., Revaz, Yves, Shimizu, Ikkoh, Velázquez, Héctor, Collaboration, the AGORA

The AGORA Cosmorun (arXiv:2106.09738) is a set of hydrodynamical cosmological zoom-in simulations carried out within the AGORA High-resolution Galaxy Simulations Comparison Project (arXiv:1308.2669,arXiv:1610.03066). These simulations show the format

Externí odkaz: http://arxiv.org/abs/2408.00432

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The AGORA High-resolution Galaxy Simulations Comparison Project IV: Halo and Galaxy Mass Assembly in a Cosmological Zoom-in Simulation at $z\le2$

In this fourth paper from the AGORA Collaboration, we study the evolution down to redshift $z=2$ and below of a set of cosmological zoom-in simulations of a Milky Way mass galaxy by eight of the leading hydrodynamic simulation codes. We also compare

Externí odkaz: http://arxiv.org/abs/2402.06202

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The AGORA High-resolution Galaxy Simulations Comparison Project. V: Satellite Galaxy Populations In A Cosmological Zoom-in Simulation of A Milky Way-mass Halo

Publikováno v: ApJ 964 123 (2024)

We analyze and compare the satellite halo populations at $z\sim2$ in the high-resolution cosmological zoom-in simulations of a $10^{12}\,{\rm M}_{\odot}$ target halo ($z=0$ mass) carried out on eight widely-used astrophysical simulation codes ({\sc A

Externí odkaz: http://arxiv.org/abs/2402.05392

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The AGORA High-resolution Galaxy Simulations Comparison Project. VI. Similarities and Differences in the Circumgalactic Medium

Publikováno v: ApJ 962 29 (2024)

We analyze the circumgalactic medium (CGM) for eight commonly-used cosmological codes in the AGORA collaboration. The codes are calibrated to use identical initial conditions, cosmology, heating and cooling, and star formation thresholds, but each ev

Externí odkaz: http://arxiv.org/abs/2402.05246

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Merger Tree-based Galaxy Matching: A Comparative Study Across Different Resolutions

Autor: Jung, Minyong, Kim, Ji-hoon, Oh, Boon Kiat, Hong, Sungwook E., Lee, Jaehyun, Kim, Juhan

Publikováno v: ApJ 965 156 (2024)

We introduce a novel halo/galaxy matching technique between two cosmological simulations with different resolutions, which utilizes the positions and masses of halos along their subhalo merger tree. With this tool, we conduct a study of resolution bi

Externí odkaz: http://arxiv.org/abs/2312.02466

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Dark Matter Deficient Galaxies Produced Via High-velocity Galaxy Collisions In High-resolution Numerical Simulations

Autor: Shin, Eun-jin, Jung, Minyong, Kwon, Goojin, Kim, Ji-hoon, Lee, Joohyun, Jo, Yongseok, Oh, Boon Kiat

The recent discovery of diffuse dwarf galaxies that are deficient in dark matter appears to challenge the current paradigm of structure formation in our Universe. We describe the numerical experiments to determine if the so-called dark matter deficie

Externí odkaz: http://arxiv.org/abs/2007.09889

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