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Zooming into local active galactic nuclei : the power of combining SDSS-IV MaNGA with higher resolution integral field unit observations

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Zooming into local active galactic nuclei : the power of combining SDSS-IV MaNGA with higher resolution integral field unit observations

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Título Zooming into local active galactic nuclei : the power of combining SDSS-IV MaNGA with higher resolution integral field unit observations
Autor Wylezalek, Dominika
Schnorr Müller, Allan
Zakamska, Nadia L.
Storchi-Bergmann, Thaisa
Greene, Jenny E.
Muller-Sanchez, Francisco
Kelly, Michael
Liu, Guilin
Law, David R.
Barrera-Ballesteros, Jorge
Riffel, Rogemar André
Thomas, Daniel B.
Abstract Ionized gas outflows driven by active galactic nuclei (AGN) are ubiquitous in high-luminosity AGN with outflow speeds apparently correlated with the total bolometric luminosity of the AGN. This empirical relation and theoretical work suggest that in the range Lbol ∼ 1043−45 erg s−1 there must exist a threshold luminosity above which theAGNbecomes powerful enough to launch winds that will be able to escape the galaxy potential. In this paper, we present pilot observations of two AGN in this transitional range that were taken with the Gemini North Multi-Object Spectrograph integral field unit (IFU). Both sources have also previously been observed within the Sloan Digital Sky Survey-IV (SDSS) Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey. While the MaNGA IFU maps probe the gas fields on galaxy-wide scales and show that some regions are dominated by AGN ionization, the new Gemini IFU data zoom into the centre with four times better spatial resolution. In the object with the lower Lbol we find evidence of a young or stalled biconical AGN-driven outflow where none was obvious at the MaNGA resolution. In the object with the higher Lbol we trace the large-scale biconical outflow into the nuclear region and connect the outflow from small to large scales. These observations suggest that AGN luminosity and galaxy potential are crucial in shaping wind launching and propagation in low-luminosity AGN. The transition from small and young outflows to galaxy-wide feedback can only be understood by combining large-scale IFU data that trace the galaxy velocity field with higher resolution, small-scale IFU maps.
Contido em Monthly notices of the Royal Astronomical Society. Oxford. Vol. 467, no. 3 (June 2017), p. 2612–2624
Assunto Cinemática
Galáxias ativas
Galaxias seyfert
Mapeamentos astronômicos
Nucleo galatico
[en] Galaxies: active
[en] Galaxies: kinematics and dynamics
[en] Galaxies: seyfert
[en] Techniques: imaging spectroscopy
[en] Techniques: spectroscopic
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/164924
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