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dc.contributor.author
Cora, Sofia Alejandra
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dc.contributor.author
Tornatore, Luca
dc.contributor.author
Tozzi, Paolo
dc.contributor.author
Dolag, Klaus
dc.date.available
2018-04-24T13:28:42Z
dc.date.issued
2008-12
dc.identifier.citation
Cora, Sofia Alejandra; Tornatore, Luca ; Tozzi, Paolo ; Dolag, Klaus ; On the dynamical origin of the ICM metallicity evolution; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 306; 12-2008; 96-104
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/43219
dc.description.abstract
We present a study on the origin of the metallicity evolution of the intra-cluster medium (ICM) by applying a semi-analytic model of galaxy formation to N-body/smoothed particle hydrodynamic (SPH) non-radiative numerical simulations of clusters of galaxies. The semi-analytic model includes gas cooling, star formation, supernovae feedback and metal enrichment, and is linked to the diffuse gas of the underlying simulations so that the chemical properties of gas particles are dynamically and consistently generated from stars in the galaxies. This hybrid model lets us have information on the spatial distribution of metals in the ICM. The results obtained for a set of clusters with virial masses of ∼1.5 × 1015 h−1 M contribute to the theoretical interpretation of recent observational X-ray data, which indicate a decrease of the average iron content of the intra-cluster gas with increasing redshift. We find that this evolution arises mainly as a result of a progressive increase of the iron abundance within ∼0.15 Rvir. The clusters have been considerably enriched by z ∼ 1 with very low contribution from recent star formation. Low entropy gas that has been enriched at high redshift sinks to the cluster centre contributing to the evolution of the metallicity profiles.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Numerical Methods
dc.subject
Galaxies
dc.subject
Cosmology
dc.subject
X-Ray Galaxies
dc.subject
Clusters of Galaxies
dc.subject.classification
Astronomía
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
On the dynamical origin of the ICM metallicity evolution
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-23T15:34:58Z
dc.journal.volume
306
dc.journal.pagination
96-104
dc.journal.pais
Reino Unido
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dc.description.fil
Fil: Cora, Sofia Alejandra. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
dc.description.fil
Fil: Tornatore, Luca. Istituto Nazionale Di Astrofisica; Italia
dc.description.fil
Fil: Tozzi, Paolo. Istituto Nazionale Di Astrofisica; Italia
dc.description.fil
Fil: Dolag, Klaus. Max-Planck-Institut fur Astrophysik; Alemania
dc.journal.title
Monthly Notices of the Royal Astronomical Society
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/j.1365-2966.2008.13068.x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/386/1/96/977131
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