The AGN Ionization Cones of NGC 5728. I. Excitation and Nuclear Structure

Durré, Mark; Mould, Jeremy

doi:10.3847/1538-4357/aae68e

Cited by 43 publications

(60 citation statements)

References 95 publications

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“…This combined with extended morphology following the edges of CO (2-1) emission suggests that the H 2 (1-0) S(1) emission is produced by either X-ray heating from the AGN or shocks as the AGN driven outflow expands into the disk and is consistent with the conclusions of a study of NIR line emission in 62 AGN from long slit spectra (Rodríguez-Ardila et al 2004;Rodríguez-Ardila et al 2005;Riffel et al 2013b). Indeed Durré & Mould (2018) show that this is the case through the use of H 2 excitation diagrams.…”

Section: The Inner Warped Diskmentioning

confidence: 90%

The multiphase gas structure and kinematics in the circumnuclear region of NGC 5728

Shimizu

Davies

Lutz

et al. 2019

Monthly Notices of the Royal Astronomical Society

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We report on our combined analysis of HST, VLT/MUSE, VLT/SINFONI, and ALMA observations of the local Seyfert 2 galaxy, NGC 5728 to investigate in detail the feeding and feedback of the AGN. The datasets simultaneously probe the morphology, excitation, and kinematics of the stars, ionized gas, and molecular gas over a large range of spatial scales (10 pc-10 kpc). NGC 5728 contains a large stellar bar which is driving gas along prominent dust lanes to the inner 1 kpc where the gas settles into a circumnuclear ring. The ring is strongly star forming and contains a substantial population of young stars as indicated by the lowered stellar velocity dispersion and gas excitation consistent with HII regions. We model the kinematics of the ring using the velocity field of the CO (2-1) emission and stars and find it is consistent with a rotating disk. The outer regions of the disk, where the dust lanes meet the ring, show signatures of inflow at a rate of 1 M yr −1 . Inside the ring, we observe three molecular gas components corresponding to the circular rotation of the outer ring, a warped disk, and the nuclear stellar bar. The AGN is driving an ionized gas outflow that reaches a radius of 250 pc with a mass outflow rate of 0.08 M yr −1 consistent with its luminosity and scaling relations from previous studies. While we observe distinct holes in CO emission which could be signs of molecular gas removal, we find that largely the AGN is not disrupting the structure of the circumnuclear region.

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Section: The Inner Warped Diskmentioning

confidence: 90%

The multiphase gas structure and kinematics in the circumnuclear region of NGC 5728

Shimizu

Davies

Lutz

et al. 2019

Monthly Notices of the Royal Astronomical Society

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“…NGC 5728: It is a Seyfert II galaxy that presents two ionization cones produced by a central AGN (e.g., Wilson et al 1993). MUSE observations of this object have been presented in Durré & Mould (2018, 2019. Our emission-line images reveal two ionized cones extending toward the SE and NW from the optical nucleus.…”

Section: Acknowledgmentsmentioning

confidence: 99%

The AMUSING++ Nearby Galaxy Compilation. I. Full Sample Characterization and Galactic-scale Outflow Selection

López-Cobá¹,

Sánchez²,

Anderson

et al. 2020

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We present here AMUSING++; the largest compilation of nearby galaxies observed with the MUSE integral field spectrograph so far. This collection consists of 635 galaxies from different MUSE projects covering the redshift interval 0.0002 < z < 0.1. The sample and its main properties are characterized and described in here. It includes galaxies of almost all morphological types, with a good coverage in the color-magnitude diagram, within the stellar mass range between 10 8 to 10 12 M , and with properties resembling those of a diameter-selected sample. The AMUSING++ sample is therefore suitable to study, with unprecendent detail, the properties of nearby galaxies at global and local scales, providing us with more than 50 million individual spectra. We use this compilation to investigate the presence of galactic outflows. We exploit the use of combined emission-line images to explore the shape of the different ionized components and the distribution along classical diagnostic diagrams to disentangle the different ionizing sources across the optical extension of each galaxy. We use the cross correlation function to estimate the level of symmetry of the emission lines as an indication of the presence of shocks and/or active galactic nuclei. We uncovered a total of 54 outflows, comprising ∼8% of the sample. A large number of the discovered outflows correspond to those driven by active galactic nuclei (∼60%), suggesting some bias in the selection of our sample. No clear evidence was found that outflow host galaxies are highly star-forming, and outflows appear to be found within all galaxies around the star formation sequence.

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“…We reduced archival XShooter spectra 3 using version 2.9.3 of the XShooter pipeline (Modigliani et al 2010) accessed via the Reflex interface, followed by telluric line corrections with molecfit (Smette et al 2015). Mark Durré kindly reduced SINFONI spectra of NGC 5728 as described in Durré & Mould (2018), using the SINFONI data reduction pipeline (version 2.5.2) accessed through the gasgano interface, with telluric correction and flux calibration from standard stars observed at a similar airmass.…”

Section: Combining Spectramentioning

confidence: 99%

The spectral energy distributions of active galactic nuclei

Brown

Duncan

Landt

et al. 2019

Monthly Notices of the Royal Astronomical Society

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We present spectral energy distributions (SEDs) of 41 active galactic nuclei, derived from multiwavelength photometry and archival spectroscopy. All of the SEDs span at least 0.09 to 30 µm, but in some instances wavelength coverage extends into the X-ray, far-infrared and radio. For some AGNs we have fitted the measured far-infrared photometry with greybody models, while radio flux density measurements have been approximated by power-laws or polynomials. We have been able to fill some of the gaps in the spectral coverage using interpolation or extrapolation of simple models. In addition to the 41 individual AGN SEDs, we have produced 72 Seyfert SEDs by mixing SEDs of the central regions of Seyferts with galaxy SEDs. Relative to the literature, our templates have broader wavelength coverage and/or higher spectral resolution. We have tested the utility of our SEDs by using them to generate photometric redshifts for 0 < z ≤ 6.12 AGNs in the Boötes field (selected with X-ray, IR and optical criteria) and, relative to SEDs from the literature, they produce comparable or better photometric redshifts with reduced flux density residuals.

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The AGN Ionization Cones of NGC 5728. I. Excitation and Nuclear Structure

Cited by 43 publications

References 95 publications

The multiphase gas structure and kinematics in the circumnuclear region of NGC 5728

The multiphase gas structure and kinematics in the circumnuclear region of NGC 5728

The AMUSING++ Nearby Galaxy Compilation. I. Full Sample Characterization and Galactic-scale Outflow Selection

The spectral energy distributions of active galactic nuclei

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