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Cold Fronts and Shocks Formed by Gas Streams in Galaxy Clusters
Elad Zinger, Avishai Dekel, Yuval Birnboim +3
Cold Fronts and shocks are hallmarks of the complex intra-cluster medium (ICM) in galaxy clusters. They are thought to occur due to gas motions within the ICM and are often attribu…
The hydrodynamic stability of gaseous cosmic filaments
Yuval Birnboim, Dan Padnos, Elad Zinger
Virial shocks at edges of cosmic-web structures are a clear prediction of standard structure formation theories. We derive a criterion for the stability of the post-shock gas and o…
Instability of Supersonic Cold Streams Feeding Galaxies I: Linear Kelvin-Helmholtz Instability with Body Modes
Nir Mandelker, Dan Padnos, Avishai Dekel +4
Massive galaxies at high redshift are predicted to be fed from the cosmic web by narrow, dense, cold streams. These streams penetrate supersonically through the hot medium encompas…