The Three Hundred - A large galaxy cluster catalogue for cosmological and astrophysical

26 Pages·2017·12.67 MB·English

The Three Hundred
A large galaxy cluster catalogue for cosmological and astrophysical applications.
Weiguang Cui,* 1
In collaboration with the core team (Alexander Knebe, Gustavo Yepes and etc.) of the
nIFTy and the Three hundred projects and the participants of the CCC workshop.
∗DepartamentodeF´ısicaTe´orica,
UniversidadAut´onomadeMadrid,28049Madrid,Spain
Simulated skies for new-generation spectroscopic surveys workshop at ESA, Madrid, April
24, 2018
1https://weiguangcui.github.io
Email:[email protected] 1/16
Typically a few Mpc across, contain ∼ 100 - 1000 luminous galaxies and many more
dwarfs, masses (cid:38) 1014.5M .
(cid:12)
Dark matter: ∼ 85%, gas: ∼ 13%, star: ∼ 1−2%.
It provides plentiful information for baryonic processes, galaxy formation and cosmology
models.
Figure: The Coma cluster.
Background: Cluster of Galaxies:
Galaxy cluster is the final state of the hierarchical structure formation.
Email:[email protected] 2/16
Dark matter: ∼ 85%, gas: ∼ 13%, star: ∼ 1−2%.
It provides plentiful information for baryonic processes, galaxy formation and cosmology
models.
Figure: The Coma cluster.
Background: Cluster of Galaxies:
Galaxy cluster is the final state of the hierarchical structure formation.
Typically a few Mpc across, contain ∼ 100 - 1000 luminous galaxies and many more
dwarfs, masses (cid:38) 1014.5M .
(cid:12)
Email:[email protected] 2/16
It provides plentiful information for baryonic processes, galaxy formation and cosmology
models.
Figure: The Coma cluster.
Background: Cluster of Galaxies:
Galaxy cluster is the final state of the hierarchical structure formation.
Typically a few Mpc across, contain ∼ 100 - 1000 luminous galaxies and many more
dwarfs, masses (cid:38) 1014.5M .
(cid:12)
Dark matter: ∼ 85%, gas: ∼ 13%, star: ∼ 1−2%.
Email:[email protected] 2/16
Figure: The Coma cluster.
Background: Cluster of Galaxies:
Galaxy cluster is the final state of the hierarchical structure formation.
Typically a few Mpc across, contain ∼ 100 - 1000 luminous galaxies and many more
dwarfs, masses (cid:38) 1014.5M .
(cid:12)
Dark matter: ∼ 85%, gas: ∼ 13%, star: ∼ 1−2%.
It provides plentiful information for baryonic processes, galaxy formation and cosmology
models.
Email:[email protected] 2/16
Background: Cluster of Galaxies:
Galaxy cluster is the final state of the hierarchical structure formation.
Typically a few Mpc across, contain ∼ 100 - 1000 luminous galaxies and many more
dwarfs, masses (cid:38) 1014.5M .
(cid:12)
Dark matter: ∼ 85%, gas: ∼ 13%, star: ∼ 1−2%.
It provides plentiful information for baryonic processes, galaxy formation and cosmology
models.
Figure: The Coma cluster.
Email:[email protected] 2/16
Background: Cluster of Galaxies:
To understand these observational results, especially how they are formed, we need
simulations.
WeiguangCui
Email:[email protected] 3/16
The Three Hundred: A successor of the nIFTy project
The nIFTy galaxy cluster comparison project2
11 different (in both algorithms and baryon models) simulation codes are used to simulate the
same galaxy cluster.
2Ref: Sembolinietal. 2016a,b;Elahietal. 2016;Cuietal. 2016;Arthuretal. 2017
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The Three Hundred: A successor of the nIFTy project
What did we find? I
ThemodernSPHcodesproducecorrectentropyprofilesasAMR,movingmesh.
Thebaryonmodelshavelargereffectsthanthefluidsimulatingtechniquesbymixingtheentropyprofiles.
Entropy
profile.
Ref:
Semboliniet
al. 2016a,b.
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The Three Hundred: A successor of the nIFTy project
What did we find? II
Differentbaryonmodelsproducesimilarglobalproperties,largescatteratsmallscales.
E.g. Baryoneffectsondensity
profile.
Ref: Cuietal. 2016
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