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<a target="_blank" rel="noopener" href="https://fatcat.wiki/container/qjdxzupqgjennounydm4zfdlem" style="color: black;">Monthly notices of the Royal Astronomical Society</a>
The range of microphysical and global dynamical timescales in the central regions of Active Galactic Nuclei (AGN) is sufficiently wide to permit the existence of multiphase structure. In particular, very dense, cool clouds can coexist with a hot, magnetically-dominated medium and can thereby efficiently reprocess the continuum radiation generated in this primary source region. The strong dynamical forces in this central magnetosphere can give rise to extremely small clouds. Microphysical<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1093/mnras/283.4.1322">doi:10.1093/mnras/283.4.1322</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/6mjglriolvfdbcb5rdjwvi42bu">fatcat:6mjglriolvfdbcb5rdjwvi42bu</a> </span>
more »... es then determine whether such clouds can indeed survive, in spite of their extremely contrasting properties relative to the surrounding environment, for long enough to produce potentially observable thermal reprocessing signatures. We examine specific physical constraints on the thicknesses of such reprocessing clouds. Our results are plotted to show the range of conditions that is representative of the central regions of AGN. We find a parameter subspace in the extreme high density regime for which the effects of microphysical diffusion processes can be overcome and for which cool gas can maintain pressure equilibrium with the ambient magnetosphere.
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