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The AGORA High-reso...
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Roca-Fàbrega, SantiLund University,Lunds universitet,Astrofysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Astrophysics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Complutense University of Madrid
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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 ≤ 2
- Artikel/kapitelEngelska2024
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LIBRIS-ID:oai:lup.lub.lu.se:9b4eda27-7a8a-4b51-b9a1-555f0bea3f5f
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https://lup.lub.lu.se/record/9b4eda27-7a8a-4b51-b9a1-555f0bea3f5fURI
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https://doi.org/10.3847/1538-4357/ad43deDOI
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Språk:engelska
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Sammanfattning på:engelska
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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 this CosmoRun suite of simulations with dark matter-only simulations by the same eight codes. We analyze general properties of the halo and galaxy at z = 4 and 3, and before the last major merger, focusing on the formation of well-defined rotationally supported disks, the mass-metallicity relation, the specific star formation rate, the gas metallicity gradients, and the nonaxisymmetric structures in the stellar disks. Codes generally converge well to the stellar-to-halo mass ratios predicted by semianalytic models at z ∼ 2. We see that almost all the hydro codes develop rotationally supported structures at low redshifts. Most agree within 0.5 dex with the observed mass-metallicity relation at high and intermediate redshifts, and reproduce the gas metallicity gradients obtained from analytical models and low-redshift observations. We confirm that the intercode differences in the halo assembly history reported in the first paper of the collaboration also exist in CosmoRun, making the code-to-code comparison more difficult. We show that such differences are mainly due to variations in code-dependent parameters that control the time stepping strategy of the gravity solver. We find that variations in the early stellar feedback can also result in differences in the timing of the low-redshift mergers. All the simulation data down to z = 2 and the auxiliary data will be made publicly available.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Kim, Ji HoonSeoul National University
(författare)
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Primack, Joel R.University of California, Santa Cruz
(författare)
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Jung, Minyong
(författare)
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Genina, AnnaMax Planck Institute for Astrophysic
(författare)
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Hausammann, LoicETH Zürich,Swiss Federal Institute of Technology
(författare)
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Kim, HyeonyongSeoul National University
(författare)
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Lupi, AlessandroUniversity of Insubria,University of Milano-Bicocca
(författare)
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Nagamine, KentaroOsaka University,University of Nevada, Las Vegas,University of Tokyo
(författare)
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Powell, Johnny W.Reed College
(författare)
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Revaz, YvesSwiss Federal Institute of Technology
(författare)
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Shimizu, IkkohShikoku Gakuin University
(författare)
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Strawn, ClaytonUniversity of California, Santa Cruz
(författare)
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Velázquez, HéctorNational Autonomous University of Mexico
(författare)
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Abel, TomStanford University,Stanford Linear Accelerator Center (SLAC)
(författare)
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Ceverino, DanielAutonomous University of Madrid
(författare)
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Dong, BiliUniversity of California, San Diego
(författare)
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Quinn, Thomas R.University of Washington
(författare)
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Shin, Eun Jin
(författare)
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Segovia-Otero, AlvaroLund University,Lunds universitet,Astrofysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Astrophysics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)al5043se
(författare)
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Agertz, OscarLund University,Lunds universitet,Astrofysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Astrophysics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)os6277ag
(författare)
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Barrow, Kirk S.S.University of Illinois at Urbana-Champaign
(författare)
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Cadiou, CorentinLund University,Lunds universitet,Astrofysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Astrophysics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)co4728ca
(författare)
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Dekel, AvishaiHebrew University of Jerusalem
(författare)
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Hummels, CameronCalifornia Institute of Technology
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Oh, Boon KiatUniversity of Connecticut
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Teyssier, RomainPrinceton University
(författare)
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AstrofysikFysiska institutionen
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the AGORA Collaboration
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Ingår i:Astrophysical Journal968:20004-637X
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Roca-Fàbrega, Sa ...
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Kim, Ji Hoon
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Primack, Joel R.
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Jung, Minyong
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Genina, Anna
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Hausammann, Loic
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visa fler...
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Kim, Hyeonyong
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Lupi, Alessandro
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Nagamine, Kentar ...
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Powell, Johnny W ...
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Revaz, Yves
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Shimizu, Ikkoh
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Strawn, Clayton
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Velázquez, Hécto ...
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Abel, Tom
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Ceverino, Daniel
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Dong, Bili
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Quinn, Thomas R.
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Shin, Eun Jin
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Segovia-Otero, A ...
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Agertz, Oscar
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Barrow, Kirk S.S ...
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Cadiou, Corentin
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Dekel, Avishai
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Hummels, Cameron
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Oh, Boon Kiat
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Teyssier, Romain
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