Published April 26, 2021
| Version v1
Poster
Open
Excitation mechanisms in the intracluster filaments surrounding Brightest Cluster Galaxies
Description
The excitation of the filamentary gas structures surrounding giant elliptical galaxies at the center of cool-core clusters, a.k.a BCGs (Brightest Cluster Galaxies), is key to our understanding of AGN feedback, and of the impact of environmental and local effects on star formation. Using the photoionization code Cloudy, we investigated the contribution of the thermal radiation from the cooling flow surrounding BCGs to the excitation of the filaments. We explored the effects of turbulence, and of metallicity, on the optical and infrared lines. Such models of self-irradiated clouds, manage to reproduce simultaneously a large number of optical-to-infrared line ratios when all the gas phases (from ionised to molecular) are modelled self-consistently.
Files
Galspec2021_FiorellaPolles.pdf
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(5.6 MB)
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