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Excitation mechanism in the intracluster filaments surrounding the Brightest Cluster Galaxies

Published online by Cambridge University Press:  29 March 2021

Fiorella L. Polles Open the ORCID record for Fiorella L. Polles [Opens in a new window]
Fiorella L. Polles*
Affiliation:
Observatoire de Paris, LERMA, Collège de France, CNRS, PSL University, Sorbonne University, UPMC, Paris email: [email protected]
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Abstract

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Multi-phase filamentary structures surrounding giant elliptical galaxies at the center of cool-core clusters, the Brightest Cluster Galaxies (BCGs), have been detected from optical to submillimeter wavelengths. The source of the ionisation in the filaments is still debated. Studying the excitation of these structures is key to our understanding of Active Galactic Nuclei (AGN) feedback in general, and more precisely of the impact of environmental and local effects on star formation. One possible contributor to the excitation of the filaments is the thermal radiation from the cooling of the hot plasma surrounding the BCGs, the so-called cooling flow.

Keywords

(galaxies:) cooling flowsintergalactic medium
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S359: Galaxy Evolution and Feedback across Different Environments , March 2019 , pp. 185 - 187
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

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