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The relation between the environment and nuclear activity in nearby QSOs: Defining a control sample

Published online by Cambridge University Press:  29 March 2021

Bruna L. C. Araujo Open the ORCID record for Bruna L. C. Araujo [Opens in a new window] ,
Thaisa Storchi-Bergmann  and
Sandro B. Rembold
Bruna L. C. Araujo
Affiliation:
Departamento de Física, CCN, Universidade Federal do Piauí, 64049-550, Teresina, PI, Brazil email: [email protected]
Thaisa Storchi-Bergmann
Affiliation:
Instituto de Física, Universidade Federal do Rio Grande do Sul, CP 15051, Porto Alegre, RS, 91501-970, Brazil
Sandro B. Rembold
Affiliation:
Departamento de Física, CCNE, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
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Abstract

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In this study, we aim to investigate the relation between nuclear activity and the environment for luminous (L[O III] >7.63 × 1041 erg s–1) Active Galactic Nuclei (AGN) - that, at these luminosities are classified as quasi-stellar objects (QSOs) - using a sample of 436 type 2 QSOs. Recent studies suggest that there is an excess of interacting hosts in luminous AGN, indicating that interactions trigger the nuclear activity. In order to examine this, it is necessary to select a control sample of non-active galaxies, matched to the active ones by the properties of the host galaxies, such as distance and stellar mass. We present here the results of the search for such a control sample.

Keywords

galaxies: activegalaxies: interactionsquasars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S359: Galaxy Evolution and Feedback across Different Environments , March 2019 , pp. 339 - 341
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

References

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Storchi-Bergmann, T., Dall’Agnol de Oliveira, B., Longo Micchi, L. F., et al. 2018, ApJ, 868, 14 CrossRefGoogle Scholar