NuSTAR/XMM-Newton monitoring of the Seyfert 1 galaxy HE 1143-1810. Testing the two-corona scenario

Abstract

We test the two-corona accretion scenario for active galactic nuclei in the case of the `bare' Seyfert 1 galaxy HE 1143-1810. We perform a detailed study of the broad-band UV--X-ray spectral properties and of the short-term variability. We present results of a joint XMM-Newton and NuSTAR monitoring of the source, consisting of 5x20 ks observations, each separated by 2 days, performed in December 2017. The source is variable in flux among the different observations, and a correlation is observed between the UV and X-ray emission. Moderate spectral variability is observed in the soft band. The time-averaged X-ray spectrum exhibits a cut-off at $\sim 100$ keV consistent with thermal Comptonization. We detect an iron K$\alpha$ line consistent with being constant during the campaign and originating from a mildly ionized medium. The line is accompanied by a moderate, ionized reflection component. A soft excess is clearly present below 2 keV and is well described by thermal Comptonization in a `warm' corona with a temperature of $\sim 0.5$ keV and a Thomson optical depth of $\sim 17-18$. For the hot hard X-ray emitting corona, we obtain a temperature of $\sim 20$ keV and an optical depth of $\sim 4$ assuming a spherical geometry. A fit assuming a jet-emitting disc (JED) for the hot corona also provides a nice description of the broad-band spectrum. In this case, the data are consistent with an accretion rate varying between $\sim 0.7$ and $\sim 0.9$ in Eddington units and a transition between the outer standard disc and the inner JED at $\sim 20$ gravitational radii. The broad-band high-energy data agree with an accretion flow model consisting of two phases: an outer standard accretion disc with a warm upper layer, responsible for the optical--UV emission and the soft X-ray excess, and an inner slim JED playing the role of a hard X-ray emitting hot corona.

arXiv commentaccepted for publication in A&A. Due to the description of standard procedures of data reduction and analysis, the text partly overlaps with arXiv:1805.06229, by the same authors. The latter paper describes a similar observational campaign, with the same instrumental setup, on a different object and reporting different results

References in corpus (68)

• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI: Final data release of the combined LDS and IAR surveys with improved stray-radiation corrections
• The European Photon Imaging Camera on XMM-Newton: The MOS Cameras
• The Nuclear Spectroscopic Telescope Array (NuSTAR) Mission
• Atomic Data for Astrophysics. II. New Analytic Fits for Photoionization Cross Sections of Atoms and Ions
• On characterising the variability properties of X-ray light curves from active galaxies
• A fundamental plane of black hole activity
• The 6dF Galaxy Survey: Final Redshift Release (DR3) and Southern Large-Scale Structures
• Broad-band gamma-ray and X-ray spectra of NGC 4151 and their implications for physical processes and geometry
• Improved Reflection Models of Black-Hole Accretion Disks: Treating the Angular Distribution of X-rays
• The XMM-Newton Optical/UV Monitor Telescope
• An XMM-Newton survey of broad iron lines in Seyfert galaxies
• Intrinsic disc emission and the Soft X-ray Excess in AGN
• The 70 Month Swift-BAT All-Sky Hard X-Ray Survey
• The May 1989 outburst of the Soft X-ray Transient GS 2023+338 (V404 Cyg)
• ASCA observations of Seyfert 1 galaxies: II. Relativistic Iron K-alpha emission
• Updated Atomic Data and Calculations for X-ray Spectroscopy
• X-ray reflected spectra from accretion disk models. III. A complete grid of ionized reflection calculations
• An Explanation for the soft X-ray excess in AGN
• A Model for the X-Ray and UV Emission from Seyfert Galaxies and Galactic Black Holes
• X-ray reflected spectra from accretion disk models. I. Constant density atmospheres
• Suzaku observations of 'bare' active galactic nuclei
• A Simple Comptonization Model
• Comparing Single-Epoch Virial Black Hole Mass Estimators for Luminous Quasars
• CAIXA: a Catalogue of AGN In the XMM-Newton Archive I. Spectral analysis
• CAIXA: a catalogue of AGN in the XMM-Newton archive III. Excess Variance Analysis
• New Spectral Model for Constraining Torus Covering Factors from Broadband X-ray Spectra of Active Galactic Nuclei
• Compton reflection and iron fluorescence in BeppoSAX observations of Seyfert type 1 galaxies
• Testing warm Comptonization models for the origin of the soft X-ray excess in AGN
• Normalizing a Relativistic Model of X-ray Reflection: The Definition of the Reflection Fraction and its Implementation in relxill
• High-Density Effects in X-ray Reflection Models from Accretion Disks
• Evidence for a multizone warm absorber in the XMM-Newton spectrum of Markarian 304
• A unified accretion-ejection paradigm for Black Hole X-ray Binaries
• XMM-Newton study of the complex and variable spectrum of NGC 4051
• Multiwavelength campaign on Mrk 509. IV. Optical-UV-X-ray variability and the nature of the soft X-ray excess
• Seyfert galaxies in the local Universe (z$\le$ 0.1): the average X-ray spectrum as seen by $BeppoSAX$
• Multiwavelength campaign on Mrk 509 XII. Broad band spectral analysis
• X-ray variability and correlations in the two phase disk-corona model for Seyfert galaxies
• Observations of Seyferts by OSSE and parameters of their X-ray/gamma-ray sources
• X-ray reflected spectra from accretion disk models.II. Diagnostic tools for X-ray observations
• A NuSTAR census of coronal parameters in Seyfert galaxies
• The 1.5 Ms Observing Campaign on IRAS 13224-3809: X-ray Spectral Analysis I
• Radiation spectra of warm and optically thick coronae in AGN
• A deep X-ray view of the bare AGN Ark120. IV. XMM-Newton and NuSTAR spectra dominated by two temperature (warm, hot) Comptonization processes
• The INTEGRAL high energy cut-off distribution of type 1 AGN
• The Soft-Excess in Mrk 509: Warm Corona or Relativistic Reflection?
• The soft X-ray emission of Ark 120. XMM-Newton, NuSTAR, and the importance of taking the broad view
• Tomographic reflection modelling of quasi-periodic oscillations in the black hole binary H 1743-322
• The existence of warm and optically thick dissipative coronae above accretion disks
• A Revised Calibration of the Virial Mass Estimator for Black Holes in Active Galaxies Based on Single-epoch H$\beta$ Spectra
• Simulating radiation and kinetic processes in relativistic plasmas
• A comprehensive analysis of the hard X-ray spectra of bright Seyfert galaxies
• The role of the disk magnetization on the hysteresis behavior of X-ray binaries
• Anatomy of the AGN in NGC 5548 VIII. XMM-Newton's EPIC detailed view of an unexpected variable multilayer absorber
• A unified accretion-ejection paradigm for black hole X-ray binaries. III. Spectral signatures of hybrid disk configurations
• Escape probability methods versus "exact" transfer for modelling the X-ray spectrum of Active Galactic Nuclei and X-ray binaries
• A unified accretion-ejection paradigm for black hole X-ray binaries. II. Observational signatures of jet-emitting disks
• A unified accretion-ejection paradigm for black hole X-ray binaries. IV. Replication of the 2010--2011 activity cycle of GX 339-4
• NuSTAR and XMM-Newton Observations of the Hard X-Ray Spectrum of Centaurus A
• Warm and thick corona for magnetically supported disk in GBHB
• Multi-wavelength campaign on NGC 7469 IV. The broad-band X-ray spectrum
• High-energy monitoring of NGC 4593 II. Broadband spectral analysis: testing the two-corona model
• The pertinence of Jet Emitting Discs physics to Microquasars: Application to Cygnus X-1
• Multiwavelength campaign on Mrk 509. XIII. Testing ionized-reflection models on Mrk 509
• NuSTAR + XMM-Newton monitoring of the neutron star transient AX J1745.6-2901
• Radio/X-ray monitoring of the broad-line radio galaxy 3C 382. High-energy view with XMM-Newton and NuSTAR
• Numerical computation of isotropic Compton scattering
• A comprehensive approach to analyzing the XMM-Newton data of Seyfert 1 galaxies

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