The infrared to X-ray correlation spectra of unobscured type 1 active galactic nuclei

Abstract

We use new X-ray data obtained with the Nuclear Spectroscopic Telescope Array (NuSTAR), near-infrared (NIR) fluxes, and mid-infrared (MIR) spectra of a sample of 24 unobscured type 1 active galactic nuclei (AGN) to study the correlation between various hard X-ray bands between 3 and 80 keV and the infrared (IR) emission. The IR to X-ray correlation spectrum (IRXCS) shows a maximum at ~15-20 micron, coincident with the peak of the AGN contribution to the MIR spectra of the majority of the sample. There is also a NIR correlation peak at ~2 micron, which we associate with the NIR bump observed in some type 1 AGN at ~1-5 micron and is likely produced by nuclear hot dust emission. The IRXCS shows practically the same behaviour in all the X-ray bands considered, indicating a common origin for all of them. We finally evaluated correlations between the X-ray luminosities and various MIR emission lines. All the lines show a good correlation with the hard X-rays (rho>0.7), but we do not find the expected correlation between their ionization potentials and the strength of the IRXCS.

20 pages, 6 figures, accepted by MNRAS

References in corpus (31)

• AGN Dusty Tori: I. Handling of Clumpy Media
• A 0.8-2.4 microns spectral atlas of Active Galactic Nuclei
• Seyfert galaxies in the local Universe (z$\le$ 0.1): the average X-ray spectrum as seen by $BeppoSAX$
• New Indicators for AGN Power: The Correlation Between [O IV] lambda 25.89 micron and Hard X-ray Luminosity for Nearby Seyfert Galaxies
• 9.7 um Silicate Features in AGNs: New Insights into Unification Models
• The Mid-infrared Fine-structure Lines of Neon as an Indicator of Star For mation Rate in Galaxies
• The Near-Infrared Broad Emission Line Region of Active Galactic Nuclei -- I. The Observations
• The mid IR -- hard X-ray correlation in AGN and its implications for dusty torus models
• Revisiting the relationship between 6 μm and 2-10 keV continuum luminosities of AGN
• The NuSTAR View of Nearby Compton-thick AGN: The Cases of NGC 424, NGC 1320 and IC 2560
• Nuclear 11.3$\mu$m PAH emission in local active galactic nuclei
• The Complete Infrared View of Active Galactic Nuclei from the 70-month Swift/BAT Catalog
• Calibration of [O IV] 26 micron as a Measure of Intrinsic AGN Luminosity
• BAT AGN Spectroscopic Survey - IV: Near-Infrared Coronal Lines, Hidden Broad Lines, and Correlation with Hard X-ray Emission
• The Broad-band X-ray Spectrum of IC 4329A from a Joint NuSTAR/Suzaku Observation
• Broadband Observations of the Compton-thick Nucleus of NGC 3393
• Constraining the AGN Contribution in a Multiwavelength Study of Seyfert Galaxies
• The NuSTAR Serendipitous Survey: The 40 month Catalog and the Properties of the Distant High Energy X-ray Source Population
• The X-ray and Mid-Infrared luminosities in Luminous Type 1 Quasars
• Resolving the AGN and host emission in the mid-infrared using a model-independent spectral decomposition
• NuSTAR Reveals the Comptonizing Corona of the Broad-Line Radio Galaxy 3C 382
• A complete census of silicate features in the mid-infrared spectra of active galaxies
• High-energy monitoring of NGC 4593 with XMM-Newton and NuSTAR. X-ray spectral analysis
• NuSTAR Reveals Relativistic Reflection But No Ultra-Fast Outflow In The Quasar PG 1211+143
• A mid-infrared view of the inner parsecs of the Seyfert galaxy Mrk 1066 using CanariCam/GTC
• The mid-infrared emission of Seyfert galaxies. A new analysis of ISOCAM data
• The nuclear and extended infrared emission of the Seyfert galaxy NGC 2992 and the interacting system Arp 245
• The nuclear and extended mid-infrared emission of Seyfert galaxies
• The broad band spectrum and variability of NGC 4151 observed by BeppoSAX
• Microlensing of the X-ray, UV and optical emission regions of quasars: Simulations of the time-scales and amplitude variations of microlensing events
• Variability of the coronal line region in NGC 4151

Cited by in corpus (12)

• A high angular resolution view of the PAH emission in Seyfert galaxies using JWST/MRS data
• Polycyclic Aromatic Hydrocarbons in Seyfert and star-forming galaxies
• Does the mid-infrared-hard X-ray luminosity relation for active galactic nuclei depend on Eddington ratio?
• The Galaxy Activity, Torus, and Outflow Survey (GATOS). V: Unveiling PAH survival and resilience in the circumnuclear regions of AGN with JWST
• Torus and polar dust dependence on AGN properties
• Hard X-Ray to Radio Multiwavelength SED Analysis of Local U/LIRGs in GOALS Sample with Self-consistent AGN Model Including Polar-dust Component
• A biconical ionised gas outflow and evidence for positive feedback in NGC 7172 uncovered by MIRI/JWST
• JWST MIRI reveals the diversity of nuclear mid-infrared spectra of nearby type-2 quasars
• The role of grain size in AGN torus dust models
• Influence of Comptonization region over the ambiance of accretion disc in Active Galactic Nucleus
• Silicate emission in a type-2 quasar: JWST/MIRI constraints on torus geometry and radiative feedback
• Towards an observationally motivated AGN dusty torus model -- II. The roles of density distribution and chemical composition of the dust