Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/26868
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cui, Weiguang | en_US |
dc.contributor.author | Power, Chris | en_US |
dc.contributor.author | BORGANI, STEFANO | en_US |
dc.contributor.author | Knebe, Alexander | en_US |
dc.contributor.author | Lewis, Geraint F. | en_US |
dc.contributor.author | MURANTE, Giuseppe | en_US |
dc.contributor.author | Poole, Gregory B. | en_US |
dc.date.accessioned | 2020-08-27T10:47:25Z | - |
dc.date.available | 2020-08-27T10:47:25Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26868 | - |
dc.description.abstract | Using a suite of cosmology simulations of a sample of >120 galaxy clusters with log (M<SUB>DM, vir</SUB>) ≤ 14.5. We compare clusters that form in purely dark matter (DM) run and their counterparts in hydro-runs and investigate four independent parameters that are normally used to classify dynamical state. We find that the virial ratio η in hydro-dynamical runs is ∼10 per cent lower than in the DM run, and there is no clear separation between the relaxed and unrelaxed clusters for any parameter. Further, using the velocity dispersion deviation parameter ζ, which is defined as the ratio between cluster velocity dispersion σ and the theoretical prediction σ _t = √{G M_{total}/R}, we find that there is a linear correlation between the virial ratio η and this ζ parameter. We propose to use this ζ parameter, which can be easily derived from observed galaxy clusters, as a substitute of the η parameter to quantify the cluster dynamical state. | en_US |
dc.language.iso | eng | en_US |
dc.title | On the dynamical state of galaxy clusters: insights from cosmological simulations - II | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stw2567 | en_US |
dc.identifier.scopus | 2-s2.0-85014674882 | en_US |
dc.identifier.isi | 000393647100094 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/464/2/2502/2420665 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 464 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 2502 | en_US |
dc.type.referee | REF_1 | en_US |
dc.contributor.country | GBR | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2017MNRAS.464.2502C | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_9 Clusters of galaxies and large scale structures | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.orcid | 0000-0001-6151-6439 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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stw2567.pdf | PDF editoriale | 1.06 MB | Adobe PDF | View/Open |
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Items in DSpace are published in Open Access, unless otherwise indicated.