The Subarcsecond Mid-Infrared View of Local Active Galactic Nuclei. IV. The L- and M-band Imaging Atlas

Abstract

We present the largest currently existing subarcsecond 3-5 $\mu$m atlas of 119 local ($z<0.3$) active galactic nuclei (AGN). This atlas includes AGN of 5 subtypes: 22 are Seyfert 1; 5 are intermediate Seyferts; 46 are Seyfert 2; 26 are LINERs; and 20 are composites/starbursts. Each AGN was observed with VLT ISAAC in the $L$- and/or $M$-bands between 2000 and 2013. We detect at 3$\sigma$ confidence 92 sources in the $L$-band and 83 sources in the $M$-band. We separate the flux into unresolved nuclear flux and resolved flux through two-Gaussian fitting. We report the nuclear flux, extended flux, apparent size, and position angle of each source, giving $3\sigma$ upper-limits for sources which are undetected. Using WISE W1- and W2-band photometry we derive relations predicting the nuclear $L$ and $M$ fluxes for Sy1 and Sy2 AGN based on their W1-W2 color and WISE fluxes. Lastly, we compare the measured mid-infrared colors to those predicted by dusty torus models SKIRTOR, CLUMPY, CAT3D, and CAT3D-WIND, finding best agreement with the latter. We find that models including polar winds best reproduce the 3-5$\mu$m colors, indicating that winds are an important component of dusty torus models. We find that several AGN are bluer than models predict. We discuss several explanations for this and find that it is most plausibly stellar light contamination within the ISAAC $L$-band nuclear fluxes.

arXiv commentMain Text: 22 pages, 9 figures, 3 tables. Accepted by ApJ

References in corpus (55)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• emcee: The MCMC Hammer
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• Unified Schemes for Radio-Loud Active Galactic Nuclei
• Binary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions
• Composite Quasar Spectra From the Sloan Digital Sky Survey
• A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies
• HyperLEDA. III. The catalogue of extragalactic distances
• Revisiting the Unified Model of Active Galactic Nuclei
• Mid-Infrared Selection of AGN with the Wide-Field Infrared Survey Explorer. I. Characterizing WISE-Selected AGN in COSMOS
• AGN Dusty Tori: II. Observational Implications of Clumpiness
• AGN Dusty Tori: I. Handling of Clumpy Media
• A Composite HST Spectrum of Quasars
• Dust Emission from Active Galactic Nuclei
• The dust covering factor in active galactic nuclei
• Using the Bright Ultra-Hard XMM-Newton Survey to define an IR selection of luminous AGN based on WISE colours
• Low Resolution Spectral Templates For AGNs and Galaxies From 0.03 -- 30 microns
• X-CIGALE: fitting AGN/galaxy SEDs from X-ray to infrared
• A diversity of dusty AGN tori: Data release for the VLTI/MIDI AGN Large Program and first results for 23 galaxies
• The WISE AGN Catalog
• Torus and AGN properties of nearby Seyfert galaxies: Results from fitting IR spectral energy distributions and spectroscopy
• The Role of Starburst-AGN composites in Luminous Infrared Galaxy Mergers: Insights from the New Optical Classification Scheme
• The dusty torus in the Circinus galaxy: a dense disk and the torus funnel
• Dust in the polar region as a major contributor to the IR emission of AGN
• The dusty heart of nearby active galaxies -- II. From clumpy torus models to physical properties of dust around AGN
• Three-dimensional radiative transfer models of clumpy tori in Seyfert galaxies
• A Composite Extreme Ultraviolet QSO Spectrum from the Far Ultraviolet Spectroscopic Explorer
• The subarcsecond mid-infrared view of local active galactic nuclei: I. The N- and Q-band imaging atlas
• The Infrared Nuclear Emission of Seyfert Galaxies on Parsec Scales: Testing the Clumpy Torus models
• Hot Graphite Dust and the Infrared Spectral Energy Distribution of Active Galactic Nuclei
• The Nuclear Reddening Curve for Active Galactic Nuclei and the Shape of the Infra-Red to X-Ray Spectral Energy Distribution
• Dusty winds in active galactic nuclei: reconciling observations with models
• Identification of 1.4 Million AGNs in the Mid-Infrared using WISE Data
• Mapping the radial structure of AGN tori
• The subarcsecond mid-infrared view of local active galactic nuclei: III. Polar dust emission
• The characteristic blue spectra of accretion disks in quasars as uncovered in the infrared
• Molecules as tracers of galaxy evolution: an EMIR survey. I. Presentation of the data and first results
• Revealing the large nuclear dust structures in NGC 1068 with MIDI/VLTI
• Dissecting the active galactic nucleus in Circinus -- I. Peculiar mid-IR morphology explained by a dusty hollow cone
• Dissecting the active galactic nucleus in Circinus -- II. A thin dusty disc and a polar outflow on parsec scales
• The non-stellar infrared continuum of Seyfert galaxies
• High Spatial Resolution Imaging of Arp 220 from 3 - 25 microns
• Obscuration in AGNs: near-infrared luminosity relations and dust colors
• The resolved size and structure of hot dust in the immediate vicinity of AGN
• H-alpha Imaging of Early-type(Sa-Sab) Spiral Galaxies I
• An atlas of mid-infrared spectra of star-forming and active galaxies
• Modeling the Nuclear Infrared Spectral Energy Distribution of Type II Active Galactic Nuclei
• Torus model properties of an ultra-hard X-ray selected sample of Seyfert galaxies
• Exploring the mid-infrared SEDs of six AGN dusty torus models II: the data
• High-resolution HNC 3-2 SMA observations of Arp220
• Silicate Dust in Active Galactic Nuclei
• Parsec-scale Dusty Winds in Active Galactic Nuclei: Evidence for Radiation Pressure Driving
• Modelling the strongest silicate emission features of local type 1 AGN
• On the Optical-to-Silicate Extinction Ratio as a Probe of the Dust Size in Active Galactic Nuclei
• The nuclear and integrated far-infrared emission of nearby Seyfert galaxies

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• The Galaxy Activity, Torus and Outflow Survey (GATOS): II. Torus and polar dust emission in nearby Seyfert galaxies
• The dusty heart of Circinus: I. Imaging the circumnuclear dust in N-band
• Infrared Spectral Energy Distribution and Variability of Active Galactic Nuclei: Clues to the Structure of Circumnuclear Material
• Torus and polar dust dependence on AGN properties
• NuSTAR Observations of AGN with Low Observed X-ray to [OIII] Luminosity Ratios: Heavily Obscured AGN or Turned-Off AGN?
• The Close AGN Reference Survey (CARS). A parsec scale multi-phase outflow in the super-Eddington NLS1 Mrk 1044
• Direct imaging of AGN outflows and their origin with the 23 m Large Binocular Telescope
• A complex dust morphology in the high-luminosity AGN Mrk 876
• I Zw 1 and H0557-385: The Dusty Tori of Two High Eddington AGNs Observed in the MATISSE LM-Bands
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