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

Author(s): Wylezalek, Dominika; Mueller, Allan Schnorr; Zakamska, Nadia L; Storchi-Bergmann, Thaisa; Greene, Jenny E.; et al

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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 L-bol similar to 10(43-45) 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.
Publication Date: Jun-2017
Electronic Publication Date: 2-Mar-2017
Citation: Wylezalek, Dominika, Mueller, Allan Schnorr, Zakamska, Nadia L, Storchi-Bergmann, Thaisa, Greene, Jenny E, Mueller-Sanchez, Francisco, Kelly, Michael, Liu, Guilin, Law, David R, Barrera-Ballesteros, Jorge K, Riffel, Rogemar A, Thomas, Daniel. (2017). Zooming into local active galactic nuclei: the power of combining SDSS-IV MaNGA with higher resolution integral field unit observations. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 467 (2612 - 2624. doi:10.1093/mnras/stx246
DOI: doi:10.1093/mnras/stx246
ISSN: 0035-8711
EISSN: 1365-2966
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Pages: 2612 - 2624
Type of Material: Journal Article
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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