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Hα plumes or arms associated with the nucleus of NGC 7020

Published online by Cambridge University Press:  29 March 2021

H. Dottori Open the ORCID record for H. Dottori [Opens in a new window] ,
R. Díaz ,
G. Gimeno ,
A. Bianchi  and
G. Gaspar
H. Dottori
Affiliation:
Instituto de Física, UFRGS, Av. B. Gonçalves, 9500 CEP: 91501-970, P. Alegre, Brasil email: [email protected]
R. Díaz
Affiliation:
Gemini Observatory, NSF’s Optical Infrared Research Lab, USA
G. Gimeno
Affiliation:
Gemini Observatory, NSF’s Optical Infrared Research Lab, USA
A. Bianchi
Affiliation:
Instituto de Física, UFRGS, Av. B. Gonçalves, 9500 CEP: 91501-970, P. Alegre, Brasil email: [email protected]
G. Gaspar
Affiliation:
Observatorio Astronómico de Córdoba, UNC, Córdoba, Argentina
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Abstract

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We imaged the galaxy NGC 7020 with Gemini and GMOS-S interference filters centered on the Hα emission line and nearby continuum in order to detect and quantify the HII regions. Among about 200 HII regions, we detected two Hα emitting plumes or arms emerging from the galactic nucleus which, together with the nuclear emission, might indicate a process of feedback from the central region.

Keywords

Galaxy: diskGalaxy: centerGalaxy: nucleusISM: HII regions
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S359: Galaxy Evolution and Feedback across Different Environments , March 2019 , pp. 429 - 430
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

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