SIMBAD references

2016MNRAS.461..412Z - Mon. Not. R. Astron. Soc., 461, 412-432 (2016/September-1)

The role of penetrating gas streams in setting the dynamical state of galaxy clusters.

ZINGER E., DEKEL A., BIRNBOIM Y., KRAVTSOV A. and NAGAI D.

Abstract (from CDS):

We utilize cosmological simulations of 16 galaxy clusters at redshifts z=0 and z=0.6 to study the effect of inflowing streams on the properties of the X-ray emitting intracluster medium. We find that the mass accretion occurs predominantly along streams that originate from the cosmic web and consist of heated gas. Clusters that are unrelaxed in terms of their X-ray morphology are characterized by higher mass inflow rates and deeper penetration of the streams, typically into the inner third of the virial radius. The penetrating streams generate elevated random motions, bulk flows and cold fronts. The degree of penetration of the streams may change over time such that clusters can switch from being unrelaxed to relaxed over a time-scale of several giga years.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: intracluster medium - galaxies: clusters: intracluster medium

Simbad objects: 2

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2019.12.12-12:36:45

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