Hypercubes of AGN Tori (HYPERCAT) -- II. Resolving the Torus with Extremely Large Telescopes

Abstract

Recent infrared interferometric observations revealed sub-parsec scale dust distributions around active galactic nuclei (AGNs). Using images of CLUMPY torus models and NGC 1068 as an example, we demonstrate that the near- and mid-infrared nuclear emission of some nearby AGNs will be resolvable in direct imaging with the next generation of 30~m telescopes, potentially breaking degeneracies from previous studies that used integrated spectral energy distributions of unresolved AGN tori. To that effect we model wavelength-dependent point spread functions from the pupil images of various telescopes: James Webb Space Telescope, Keck, Giant Magellan Telescope, Thirty Meter Telescope, and Extremely Large Telescope. We take into account detector pixel scales and noise, and apply deconvolution techniques for image recovery. We also model 2D maps of the 10-micron silicate feature strength, $S_{10}$, of NGC 1068 and compare with observations. When the torus is resolved, we find $S_{10}$ variations across the image. However, to reproduce the $S_{10}$ measurements of an unresolved torus a dusty screen of $A_V>9$ mag is required. We also fit the first resolved image of the K-band emission in NGC 1068 recently published by the GRAVITY collaboration, deriving likely model parameters of the underlying dust distribution. We find that both 1) an elongated structure suggestive of a highly inclined emission ring, and 2) a geometrically thin but optically thick flared disk where the emission arises from a narrow strip of hot cloud surface layers on the far inner side of the torus funnel, can explain the observations.

arXiv comment21 pages, 11 figures, accepted for publication in ApJ

References in corpus (64)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Array Programming with NumPy
• Astropy: A Community Python Package for Astronomy
• Unified Schemes for Radio-Loud Active Galactic Nuclei
• Binary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions
• AGN Dusty Tori: II. Observational Implications of Clumpiness
• AGN Dusty Tori: I. Handling of Clumpy Media
• Revisiting the Infrared Spectra of Active Galactic Nuclei with a New Torus Emission Model
• Dust Emission from Active Galactic Nuclei
• The dust covering factor in active galactic nuclei
• Mid-IR Galaxy Classification Based on Silicate Obscuration and PAH Equivalent Width
• A diversity of dusty AGN tori: Data release for the VLTI/MIDI AGN Large Program and first results for 23 galaxies
• Radiative Transfer Modeling of Three-Dimensional Clumpy AGN Tori and its Application to NGC 1068
• Torus and AGN properties of nearby Seyfert galaxies: Results from fitting IR spectral energy distributions and spectroscopy
• Dusty Structure Around Type-I Active Galactic Nuclei: Clumpy Torus Narrow Line Region and Near-Nucleus Hot Dust
• 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
• ALMA resolves the torus of NGC 1068: continuum and molecular line emission
• Resolving the obscuring torus in NGC 1068 with the power of infrared interferometry: Revealing the inner funnel of dust
• The subarcsecond mid-infrared view of local active galactic nuclei: II. The mid-infrared--X-ray correlation
• The Parsec-scale Radio Structure of NGC 1068 and the Nature of the Nuclear Radio Source
• The Detection of Silicate Emission from Quasars at 10 and 18 Microns
• ALMA observations of molecular tori around massive black holes
• Testing the Unification Model for AGN in the Infrared: are the obscuring tori of Type 1 and 2 Seyferts different?
• The distribution of silicate strength in Spitzer spectra of AGNs and ULIRGs
• Dusty winds in active galactic nuclei: reconciling observations with models
• The dusty heart of nearby active galaxies. I. High-spatial resolution mid-IR spectro-photometry of Seyfert galaxies
• Parsec-scale dust emission from the polar region in the type 2 nucleus of NGC 424
• Deep Silicate absorption features in Compton-thick AGN predominantly arise due to dust in the host galaxy
• The Galaxy Activity, Torus and Outflow Survey (GATOS) I. ALMA images of dusty molecular tori in Seyfert galaxies
• Mid-infrared interferometry of 23 AGN tori: On the significance of polar-elongated emission
• Deep Mid-Infrared Silicate Absorption as a Diagnostic of Obscuring Geometry Toward Galactic Nuclei
• ALMA Reveals an Inhomogeneous Compact Rotating Dense Molecular Torus at the NGC 1068 Nucleus
• Spatially-resolved mid-infrared spectroscopy of NGC 1068: the nature and distribution of the nuclear material
• Silicate emissions in active galaxies - From LINERs to QSOs
• Spitzer/IRS 5-35 um Low-Resolution Spectroscopy of the 12 um Seyfert Sample
• On the 10-micron silicate feature in Active Galactic Nuclei
• An image of the dust sublimation region in the nucleus of NGC 1068
• Where do the disks of spiral galaxies end?
• Multi-phase Nature of a Radiation-Driven Fountain with Nuclear Starburst in a Low-mass Active Galactic Nucleus
• On the difference of torus geometry between hidden and non-hidden broad line active galactic nuclei
• Revealing the large nuclear dust structures in NGC 1068 with MIDI/VLTI
• Dust in active galactic nuclei. Mid-infrared T-ReCS/Gemini spectra using the new RedCan pipeline
• A mid-infrared spectroscopic atlas of local active galactic nuclei on sub-arcsecond resolution using GTC/CanariCam
• Orientation Effects on the Inner Region of Dusty Torus of Active Galactic Nuclei
• New evidence for the dusty wind model: Polar dust and a hot core in the type-1 Seyfert ESO323-G77
• Modeling the Nuclear Infrared Spectral Energy Distribution of Type II Active Galactic Nuclei
• The Galaxy Activity, Torus and Outflow Survey (GATOS): II. Torus and polar dust emission in nearby Seyfert galaxies
• The Origin of the Silicate Emission Features in the Seyfert 2 Galaxy, NGC 2110
• Mid-infrared, spatially-resolved spectroscopy of the nucleus of the Circinus galaxy
• The emission and distribution of dust of the torus of NGC 1068
• The central parsecs of active galactic nuclei: challenges to the torus
• Silicate Emission in the Spitzer IRS spectrum of FSC 10214+4724
• Disks and Halos in Pre-Main-Sequence Stars
• Radiation hydrodynamics models of Active Galactic Nuclei: Beyond the central parsec
• GPU-based Monte Carlo dust radiative transfer scheme applied to AGN
• Near-Infrared Polarimetric Adaptive Optics Observations of NGC 1068: A torus created by a hydromagnetic outflow wind
• ALMA polarimetry measures magnetically aligned dust grains in the torus of NGC 1068
• HST NICMOS Observations of the Polarization of NGC 1068
• Mid-infrared imaging- and spectro-polarimetric subarcsecond observations of NGC 1068
• Hypercubes of AGN Tori (HYPERCAT) -- I. Models and Image Morphology
• A Tale of Three Galaxies: Deciphering the Infrared Emission of the Spectroscopically Anomalous Galaxies IRAS F10398+1455, IRAS F21013-0739 and SDSS J0808+3948

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