The central parsec of NGC 3783: a rotating broad emission line region, asymmetric hot dust structure, and compact coronal line region

Abstract

Using VLTI/GRAVITY and SINFONI data, we investigate the sub-pc gas and dust structure around the nearby type 1 AGN hosted by NGC 3783. The K-band coverage of GRAVITY uniquely allows a simultaneous analysis of the size and kinematics of the broad line region (BLR), the size and structure of the near-IR continuum emitting hot dust, and the size of the coronal line region (CLR). We find the BLR probed through broad Br$\gamma$ emission is well described by a rotating, thick disk with a radial distribution of clouds peaking in the inner region. In our BLR model the physical mean radius of 16 light days is nearly twice the 10 day time lag that would be measured, which matches very well the 10 day time lag that has been measured by reverberation mapping. We measure a hot dust FWHM size of 0.74 mas (0.14 pc) and further reconstruct an image of the hot dust which reveals a faint (5% of the total flux) offset cloud which we interpret as an accreting cloud heated by the central AGN. Finally, we directly measure the FWHM size of the nuclear CLR as traced by the [CaVIII] and narrow Br$\gamma$ line. We find a FWHM size of 2.2 mas (0.4 pc), fully in line with the expectation of the CLR located between the BLR and narrow line region. Combining all of these measurements together with larger scale near-IR integral field unit and mid-IR interferometry data, we are able to comprehensively map the structure and dynamics of gas and dust from 0.01--100 pc.

20 pages and 18 figures in main text, Accepted for publication in A&A

References in corpus (29)

• The NumPy array: a structure for efficient numerical computation
• Molecfit: A general tool for telluric absorption correction. I. Method and application to ESO instruments
• Molecfit: A general tool for telluric absorption correction II. Quantitative evaluation on ESO-VLT X-Shooter spectra
• A Close Look at Star Formation around Active Galactic Nuclei
• The AGN Black Hole Mass Database
• The close environments of accreting massive black holes are shaped by radiative feedback
• A method to remove residual OH emission from near infrared spectra
• Galaxy Groups within 3500 km s${}^{-1}$
• The Radius-Luminosity Relationship Depends on Optical Spectra in Active Galactic Nuclei
• Fueling AGN II: Spatially Resolved Molecular Inflows and Outflows
• Modeling reverberation mapping data I: improved geometric and dynamical models and comparison with cross-correlation results
• An image of the dust sublimation region in the nucleus of NGC 1068
• Outflows of very ionized gas in the center of Seyfert galaxies: kinematics and physical conditions
• Dissecting the active galactic nucleus in Circinus -- I. Peculiar mid-IR morphology explained by a dusty hollow cone
• Chasing obscuration in type-I AGN: discovery of an eclipsing clumpy wind at the outer broad-line region of NGC 3783
• Dissecting the active galactic nucleus in Circinus -- II. A thin dusty disc and a polar outflow on parsec scales
• The spatially resolved broad line region of IRAS 09149-6206
• Obscuration in AGNs: near-infrared luminosity relations and dust colors
• LLAMA: The $M_{BH}$ - ${\sigma }_{\star }$ Relation of the most luminous local AGNs
• Constraints on the Broad Line Region Properties and Extinction in Local Seyferts
• Principles of image reconstruction in optical interferometry: tutorial
• Powerful outflows in the central parsecs of the low-luminosity Active Galactic Nucleus NGC 1386
• The MUSE Atlas of Disks (MAD): Ionized gas kinematic maps and an application to Diffuse Ionized Gas
• The location and kinematics of the coronal-line emitting regions in AGN
• The complex, dusty narrow-line region of NGC 4388: Gas-jet interactions, outflows, and extinction revealed by near-IR spectroscopy
• Robotic Reverberation Mapping of the Southern Seyfert NGC 3783
• A Comparison of Two Methods for Estimating Black Hole Spin in Active Galactic Nuclei
• LLAMA: Nuclear stellar properties of Swift BAT AGN and matched inactive galaxies
• Velocity-inverted three-dimensional distribution of the gas clouds in the Type 2 AGN NGC1068

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