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Galactic nuclear off-centerings: the innermost accretion mechanism?

Published online by Cambridge University Press:  29 March 2021

Gaia Gaspar Open the ORCID record for Gaia Gaspar [Opens in a new window] ,
Rubén Díaz ,
Damían Mast  and
María P. Agüero
Gaia Gaspar
Affiliation:
Observatorio Astronómico de Córdoba, Universidad Nacional de Córdoba, Postcode 5000, Córdoba, Argentina email: gaiagaspar@unc.edu.ar
Rubén Díaz
Affiliation:
Observatorio Astronómico de Córdoba, Universidad Nacional de Córdoba, Postcode 5000, Córdoba, Argentina email: gaiagaspar@unc.edu.ar Gemini Observatory, La Serena, Chile email: rdiaz@gemini.edu
Damían Mast
Affiliation:
Observatorio Astronómico de Córdoba, Universidad Nacional de Córdoba, Postcode 5000, Córdoba, Argentina email: gaiagaspar@unc.edu.ar
María P. Agüero
Affiliation:
Observatorio Astronómico de Córdoba, Universidad Nacional de Córdoba, Postcode 5000, Córdoba, Argentina email: gaiagaspar@unc.edu.ar
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Abstract

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In the current scenario of galaxy evolution, supermassive black holes (SMBH) are present in almost all galaxies. To trigger nuclear activity, large amounts of material have to fall from kpc to pc and even smaller scales. Hence, an efficient angular momentum removal mechanism is needed. A growing black hole could still not be fixed in the gravitational potential well of the galaxy. This can be observed as a break in the symmetry between the global structure of the galaxy and the central source and could be part of the mechanism that drives material from the last hundred parsecs onto accretion in the SMBH. We present spatial profile decomposition of 16 galaxies observed with GNIRS (Gemini North) in the Klong band. We have been able to measure off-centerings in 3 of 16 galaxies. We found a possible correlation between the presence of an off-centering and the SMBH mass.

Keywords

galaxies: nucleigalaxies: evolutiongalaxies: Seyferttechniques: spectroscopic
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S359: Galaxy Evolution and Feedback across Different Environments , March 2019 , pp. 350 - 351
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

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