NewCluster - High resolution cosmological simulation of a massive galaxy cluster

NewCluster is a cosmological zoom-in simulation targeting a galaxy cluster of about 500 trillion solar masses.

Information

General

  • Code: RAMSES-yOMP (an OpenMP version of RAMSES)
  • Mass: 8.6 × 1014 M⊙ (zoom-in region), 4.7 × 1014 M⊙ (Mvir of the final cluster)
  • Volume: ~23,300 Mpc3 (zoom-in region)
  • Resolution: ~70pc (cell), ~2 × 104 M⊙ (Star), ~1.3 × 106 M⊙ (DM)

Prescription

  • Stellar feedback
    • Core-collapse SN: Mechanical feedback (Kimm & Cen 14), delay time fixed to 5 Myr
    • Type Ia SN: Mechanical feedback (KImm & Cen 14), delay time distribution derived from Maoz+ 12
    • Stellar winds from PadovaAGB track
  • Thermal / Kinetic AGN feedback from Dubois+ 12
  • Dust evolution (Carbon and Silicate with 2 different sizes, 0.005 and 0.1μm)
  • WMAP cosmology (h=0.704, ΩΛ=0.728, Ωm=0.272)
Chemical evolution model
  • 9 Chemical species (H, C, N, O, Si, S, Mg, Fe, D)
  • SNc yield based on Kobayashi+ 06
  • SNIa yield from Iwamoto+ 99
  • Stellar wind yield from PadovaAGB track

Data

  • File size: ~650GB per snapshot
  • Number of snapshots: ~900 (planned)
  • Number of particles: ~550,000,000 (DM), ~200,000,000 (Gas tracers), ~600,000,000 (Stars)
  • Number of cells: ~1,800,000,000

Run

Selected Supercomputing Times
  • KISTI Supercomputing Center (Nurion)
    • KSC-2022-CRE-0088 (20M hours)
    • KSC-2022-CRE-0344 (20M hours)
    • KSC-2023-CRE-0343 (20M hours)
  • IBS Supercomputer (Olaf) (10M hours)
  • TGCC Irene-Rome (20M hours)
Timeline
  • Run started on 2022/05/24
  • Reached z=2 on 2023/03/17
  • Reached z=1.5 on 2023/08/19

Results

MBH-galaxy (σ*, M*) relation

z~2 (click)
z~1.5 (click)

Galaxy mass function

z~2 (click)
z~1.5 (click)

Stellar-to-Halo mass relation

z~2 (click)

Galaxy stellar/gas chemistry (most massive galaxy)

z~2 (click)

Gallery (Click to enlarge)

Zoom-in region (15 cMpc/h wide)

At z=4.13
Edit galleryComposite, z = 4.13 Gas Density, z = 4.13 Gas Temperature, z = 4.13 Dark Matter Density, z = 4.13 Gas Metallicity, z = 4.13 Dust fraction (C), z = 4.13 Stellar Density, z = 4.13
At z=2.27
Edit galleryComposite, z = 2.27 Gas Density, z = 2.27 Gas Temperature, z = 2.27 Dark Matter Density, z = 2.27 Gas Metallicity, z = 2.27 Dust fraction (C), z = 2.27 Stellar Density, z = 2.27
At z=1.49
Edit galleryComposite, z = 1.49 Gas Density, z = 1.49 Gas Temperature, z = 1.49 Dark Matter Density, z = 1.49 Gas Metallicity, z = 1.49 Dust fraction (C), z = 1.49 Stellar Density, z = 1.49

15 most massive galaxies

At z=4.01
Stars (u-band flux)
Edit galleryFace-on Edge-on
Gas (Density)
Edit galleryFace-on, 15 kpc Face-on, 50 kpc Face-on, 100 kpc Edge-on, 15 kpc Edge-on, 50 kpc Edge-on, 100 kpc
At z=3.01
Stars (u-band flux)
Edit galleryFace-on Edge-on
Gas (Density)
Edit galleryFace-on, 15 kpc Face-on, 50 kpc Face-on, 100 kpc Edge-on, 15 kpc Edge-on, 50 kpc Edge-on, 100 kpc
At z=2.01
Stars (u-band flux)
Edit galleryFace-on Edge-on
Gas (Density)
Edit galleryFace-on, 15 kpc Face-on, 50 kpc Face-on, 100 kpc Edge-on, 15 kpc Edge-on, 50 kpc Edge-on, 100 kpc
At z=1.49
Stars (u-band flux)
Edit galleryFace-on Edge-on
Gas (Density)
Edit galleryFace-on, 15 kpc Face-on, 50 kpc Face-on, 100 kpc Edge-on, 15 kpc Edge-on, 50 kpc Edge-on, 100 kpc

Videos

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Page last modified on December 15, 2023, at 10:38 PM KST
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