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Nuclear ionised outflows in a sample of 30 local galaxies.

Authors :
Ruschel-Dutra, D.
Storchi-Bergmann, T.
Schnorr-Müller, A.
Bergmann, Thaisa Storchi
Forman, William
Overzier, Roderik
Riffel, Rogério
Source :
Proceedings of the International Astronomical Union; Mar2021, Vol. 15 Issue S359, p249-254, 6p
Publication Year :
2019

Abstract

Understanding active galactic nuclei (AGN) feedback is essential for building a coherent picture of the evolution of the super massive black hole and its host galaxy. To that end we have analysed the inner kiloparsec of a sample of 30 local AGN with spatially resolved optical spectroscopy. In this talk I will review the analysis of the ionised gas for the galaxies in our sample, including kinematical maps, emission line ratios and fluxes. The W<subscript>80</subscript> kinematical index is used to trace outflows, and also to provide an estimate for the outflowing velocity. Electron densities, derived from the [S II] ΛΛ6716, 6731Å lines, along with Hα luminosities and the sizes of the outflowing regions are employed in estimates of the outflowing gas mass. We find a median mass outflow rate of Ṁ = 0.3 M<subscript>⊙</subscript> yr<superscript>-1</superscript> and median outflow power of log [P/(erg s<superscript>-1</superscript>)] = 40.4. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
17439213
Volume :
15
Issue :
S359
Database :
Complementary Index
Journal :
Proceedings of the International Astronomical Union
Publication Type :
Academic Journal
Accession number :
149533159
Full Text :
https://doi.org/10.1017/S1743921320002446