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Effects of supernovae feedback and black hole outflows in the evolution of Dwarf Spheroidal Galaxies

Published online by Cambridge University Press:  29 March 2021

Gustavo Amaral Lanfranchi Open the ORCID record for Gustavo Amaral Lanfranchi [Opens in a new window] ,
Anderson Caproni Open the ORCID record for Anderson Caproni [Opens in a new window] ,
Jennifer F. Soares  and
Larissa S. de Oliveira
Gustavo Amaral Lanfranchi
Affiliation:
Núcleo de Astrof sica, Universidade Cidade de São Paulo, R. Galvão Bueno 868, Liberdade, São Paulo, SP, 01506-000, Brazil email: gustavo.lanfranchi@cruzeirodosul.edu.br
Anderson Caproni
Affiliation:
Núcleo de Astrof sica, Universidade Cidade de São Paulo, R. Galvão Bueno 868, Liberdade, São Paulo, SP, 01506-000, Brazil email: gustavo.lanfranchi@cruzeirodosul.edu.br
Jennifer F. Soares
Affiliation:
Núcleo de Astrof sica, Universidade Cidade de São Paulo, R. Galvão Bueno 868, Liberdade, São Paulo, SP, 01506-000, Brazil email: gustavo.lanfranchi@cruzeirodosul.edu.br
Larissa S. de Oliveira
Affiliation:
Núcleo de Astrof sica, Universidade Cidade de São Paulo, R. Galvão Bueno 868, Liberdade, São Paulo, SP, 01506-000, Brazil email: gustavo.lanfranchi@cruzeirodosul.edu.br
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Abstract

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The gas evolution of a typical Dwarf Spheroidal Galaxy is investigated by means of 3D hydrodynamic simulations, taking into account the feedback of type II and Ia supernovae, the outflow of an Intermediate Massive Black Hole (IMBH) and a static cored dark matter potential. When the IMBH’s outflow is simulated in an homogeneous medium a jet structure is created and a small fraction of the gas is pushed away from the galaxy. No jet structure can be seen, however, when the medium is disturbed by supernovae, but gas is still pushed away. In this case, the main driver of the gas removal are the supernovae. The interplay between the stellar feedback and the IMBH’s outflow should be taken into account.

Keywords

hydrodynamicsISM: jets and outflowsgalaxies: dwarfevolutionLocal Group
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S359: Galaxy Evolution and Feedback across Different Environments , March 2019 , pp. 280 - 282
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

References

Caproni, A., Lanfranchi, G. A., Luiz da Silva, A., et al. 2015, ApJ, 805, 109 CrossRefGoogle Scholar
Caproni, A., Lanfranchi, G. A., Campos Baio, G. H., et al. 2017, ApJ, 838, 99 CrossRefGoogle Scholar