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Testing the link between mergers and AGN in the Arp 245 system

Published online by Cambridge University Press:  29 March 2021

Elismar Lösch Open the ORCID record for Elismar Lösch [Opens in a new window]  and
Daniel Ruschel-Dutra
Elismar Lösch
Affiliation:
Universidade Federal de Santa Catarina, UFSC, Brazil email: elismar@astro.ufsc.br
Daniel Ruschel-Dutra
Affiliation:
Universidade Federal de Santa Catarina, UFSC, Brazil email: elismar@astro.ufsc.br
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Abstract

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Galaxy mergers are known to drive an inflow of gas towards galactic centers, potentia- lly leading to both star formation and nuclear activity. In this work we aim to study how a major merger event in the ARP 245 system is linked with the triggering of an active galactic nucleus (AGN) in the NGC galaxy 2992. We employed three galaxy collision numerical simulations and calculated the inflow of gas through four different concentric spherical surfaces around the galactic centers, estimating an upper limit for the luminosity of an AGN being fed the amount of gas crossing the innermost spherical surface. We found that these simulations predict reasonable gas inflow rates when compared with the observed AGN luminosity in NGC 2992.

Keywords

galaxies: activegalaxies: evolutiongalaxies: interactions
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S359: Galaxy Evolution and Feedback across Different Environments , March 2019 , pp. 192 - 194
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

References

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