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AGN feedback and galaxy evolution in nearby galaxy groups using CLoGS

Published online by Cambridge University Press:  29 March 2021

Konstantinos Kolokythas Open the ORCID record for Konstantinos Kolokythas [Opens in a new window]  and
CLoGS team
Konstantinos Kolokythas
Affiliation:
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa emails: k.kolok@nwu.ac.za (KK), CLoGS: http://www.sr.bham.ac.uk/ejos/CLoGS.html
CLoGS team
Affiliation:
Centre for Space Research, North-West University, Potchefstroom 2520, South Africa emails: k.kolok@nwu.ac.za (KK), CLoGS: http://www.sr.bham.ac.uk/ejos/CLoGS.html
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Abstract

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Much of the evolution of galaxies takes place in groups where feedback has the greatest impact on galaxy formation and evolution. We summarize results from studies of the central brightest group early-type galaxies (BGEs) of an optically selected, statistically complete sample of 53 nearby groups (<80 Mpc; CLoGS sample), observed in radio 235/610 MHz (GMRT), CO (IRAM/APEX) and X-ray (Chandra and XMM-Newton) frequencies. We characterize the radio-AGN population of the BGEs, their group X-ray environment and examine the jet energetics impact on the intra-group gas. We discuss the relation between the radio properties of the BGEs and their group X-ray environment along with the relation between the molecular gas content and the star formation that BGEs present. We conclude that AGN feedback in groups can appear as relatively gentle near-continuous thermal regulation, but also as extreme AGN activity which could potentially shut down cooling for longer periods.

Keywords

AGN feedbackgalaxy groupsgalaxy evolutionjets
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S359: Galaxy Evolution and Feedback across Different Environments , March 2019 , pp. 180 - 181
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

Footnotes

†

KK acknowledges support from the Grants for IAU Symposia and Regional IAU Meetings

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