On the fate of the matter reinserted within young nuclear stellar clusters

Abstract

This paper presents a hydrodynamical model describing the evolution of the gas reinserted by stars within a rotating young nuclear star cluster (NSC). We explicitly consider the impact of the stellar component to the flow by means of a uniform insertion of mass and energy within the stellar cluster. The model includes the gravity force of the stellar component and a central supermassive black hole (SMBH), and accounts for the heating from the central source of radiation and the radiative cooling of the thermalized gas. By using a set of parameters typical for NSCs and SMBHs in Seyfert galaxies our simulations show that a filamentary/clumpy structure is formed in the inner part of the cluster. This "torus" is Compton thick and covers a large fraction of the sky (as seen from the SMBH). In the outer parts of the cluster a powerful wind is produced, that inhibits the infall of matter from larger scales and thus the NSC-SMBH interplay occurs in isolation.

26 pages, 7 figures, Accepted for publication in The Astrophysical Journal

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Cited by in corpus (4)

• Radiation-driven outflows from and radiative support in dusty tori of active galactic nuclei
• The formation of secondary stellar generations in massive young star clusters from rapidly cooling shocked stellar winds
• On the Onset of Secondary Stellar Generations in Giant Star Forming Regions and Massive Star Clusters
• Multi-phase environment of compact galactic nuclei: the role of the Nuclear Star Cluster