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Formation of cold molecular filaments in cooling flow clusters

2006/10/31 by Yves Revaz, F. Combes, Francoise Combes +5 · 1 citation
Physics and Astronomy · #Astro and Planetary Science #Astrophysics (astro-ph) #Astrophysics and Star Formation Studies #FOS: Physical sciences #Quantum, superfluid, helium dynamics #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/0610950

3 pages, 4 figures, To appear in the Proceedings of "Heating vs. Cooling in Galaxies and Clusters of Galaxies", August 2006, Garching (Germany) Full resolution paper may be downloaded here : http://www.lunix.ch/revaz/publications/Garching_proc.ps.gz

arxiv created 2006/10/31 · openalex publication_date 2006/10/31 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

New CO observations at the center of cooling flow in Perseus cluster \citesalome06 show a clear correlation of the molecular gas with the previously detected H-α filaments \citeconselice01. In this poster, we present high resolution multi-phase simulations of the Perseus Cluster, taking into account the AGN feedback in form of hot buoyant bubbles. These simulations show that significant amount of gas can cool far from the center. The AGN feedback provides some heating, but also trigger the hot gas compression, that favours cooling (positive feedback), even at high radius (R>30 \rmkpc). The cooled gas flows into the cluster core forming the observed filaments.

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