Reverberation Mapping of IC4329A

Abstract

We present the results of a new reverberation mapping campaign for the broad-lined active galactic nucleus (AGN) in the edge-on spiral IC4329A. Monitoring of the optical continuum with $V-$band photometry and broad emission-line flux variability with moderate-resolution spectroscopy allowed emission-line light curves to be measured for H$\beta$, H$\gamma$, and HeII $\lambda 4686$. We find a time delay of $16.3_{-2.3}^{+2.6}$ days for H$\beta$, a similar time delay of $16.0_{-2.6}^{+4.8}$ days for H$\gamma$, and an unresolved time delay of $-0.6_{-3.9}^{+3.9}$ days for HeII. The time delay for H$\beta$ is consistent with the predicted value from the relationship between AGN luminosity and broad line region radius, after correction for the $\sim 2.4$mag of intrinsic extinction at 5100A. Combining the measured time delay for H$\beta$ with the broad emission line width and an adopted value of $⟨f⟩=4.8$, we find a central supermassive black hole mass of $M_{\mathrm{BH}}=6.8_{-1.1}^{+1.2}\times 10^7{M}_{\odot }$. Velocity-resolved time delays were measured across the broad H$\beta$ emission-line profile and may be consistent with an ''M''-like shape. Modeling of the full reverberation response of H$\beta$ was able to provide only modest constraints on some parameters, but does exhibit agreement with the black hole mass and average time delay. The models also suggest that the AGN structure is misaligned by a large amount from the edge-on galaxy disk. This is consistent with expectations from the unified model of AGNs, in which broad emission lines are expected to be visible only for AGNs that are viewed at relatively face-on inclinations.

arXiv comment12 pages, 6 figures, 3 tables; accepted for publication in ApJ

References in corpus (61)

• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• Detailed Structural Decomposition of Galaxy Images
• The slope of the black-hole mass versus velocity dispersion correlation
• Detailed Decomposition of Galaxy Images. II. Beyond Axisymmetric Models
• Central Masses and Broad-Line Region Sizes of Active Galactic Nuclei. II. A Homogeneous Analysis of a Large Reverberation-Mapping Database
• A method for optimal image subtraction
• Las Cumbres Observatory Global Telescope Network
• The Low-Luminosity End of the Radius-Luminosity Relationship for Active Galactic Nuclei
• Active Galactic Nuclei as scaled-up Galactic black holes
• Supermassive Black Holes in Active Galactic Nuclei. II. Calibration of the M-sigma Relationship for AGNs
• On Uncertainties in Cross-Correlation Lags and the Reality of Wavelength-Dependent Continuum Lags in Active Galactic Nuclei
• The Radius-Luminosity Relationship for Active Galactic Nuclei: The Effect of Host-Galaxy Starlight on Luminosity Measurements II. The Full Sample of Reverberation-Mapped AGNs
• Systematic Effects in Measurement of Black Hole Masses by Emission-Line Reverberation of Active Galactic Nuclei: Eddington Ratio and Inclination
• The Lick AGN Monitoring Project: Broad-Line Region Radii and Black Hole Masses from Reverberation Mapping of Hbeta
• An expanded M_bh-sigma diagram, and a new calibration of active galactic nuclei masses
• The AGN Black Hole Mass Database
• An Alternative Approach To Measuring Reverberation Lags in Active Galactic Nuclei
• The ESSENCE Supernova Survey: Survey Optimization, Observations, and Supernova Photometry
• Space Telescope and Optical Reverberation Mapping Project. III. Optical Continuum Emission and Broad-Band Time Delays in NGC 5548
• KELT-1b: A Strongly Irradiated, Highly Inflated, Short Period, 27 Jupiter-mass Companion Transiting a mid-F Star
• Real-time processing of the imaging data from the network of Las Cumbres Observatory Telescopes using BANZAI
• CAIXA: a catalogue of AGN in the XMM-Newton archive III. Excess Variance Analysis
• Stellar Velocity Dispersion Measurements in High-Luminosity Quasar Hosts and Implications for the AGN Black Hole Mass Scale
• Reverberation mapping of Active Galactic Nuclei: from X-ray corona to dusty torus
• The Structure of the Broad Line Region in AGN: I. Reconstructed Velocity-Delay Maps
• Fuelling Active Galactic Nuclei
• Diverse Broad Line Region Kinematic Signatures From Reverberation Mapping
• ASASSN-15oi: A Rapidly Evolving, Luminous Tidal Disruption Event at 216 Mpc
• Space Telescope and Optical Reverberation Mapping Project. I. Ultraviolet Observations of the Seyfert 1 Galaxy NGC 5548 with the Cosmic Origins Spectrograph on Hubble Space Telescope
• Geometric and Dynamical Models of Reverberation Mapping Data
• The Structure of the Broad-Line Region In Active Galactic Nuclei. II. Dynamical Modeling of Data from the AGN10 Reverberation Mapping Campaign
• Recalibration of the virial factor and M-sigma relation for local active galaxies
• Modeling reverberation mapping data I: improved geometric and dynamical models and comparison with cross-correlation results
• Space Telescope and Optical Reverberation Mapping Project. V. Optical Spectroscopic Campaign and Emission-Line Analysis for NGC 5548
• The Size of the Narrow-Line Emitting Region in the Seyfert 1 Galaxy NGC 5548 from Emission-Line Variability
• Reverberation Mapping of Optical Emission Lines in Five Active Galaxies
• Double-peaked profiles: ubiquitous signatures of disks in the Broad Emission Lines of Active Galactic Nuclei
• HAT Variability Survey in the High Stellar Density "Kepler Field" with Millimagnitude Image Subtraction Photometry
• The Lick AGN Monitoring Project 2011: Dynamical Modeling of the Broad-Line Region
• The Relative Orientation of Nuclear Accretion and Galaxy Stellar Disks in Seyfert Galaxies
• Extinction due to amorphous carbon grains in red quasars from the SDSS
• Redshift-distance Survey of Early-type Galaxies: the ENEARc Cluster Sample
• First Results from the Lick AGN Monitoring Project: The Mass of the Black Hole in Arp 151
• Space Telescope and Optical Reverberation Mapping Project. IX. Velocity-Delay Maps for Broad Emission Lines in NGC 5548
• Recalibration of the $M_{BH}-{\sigma }_{\star }$ Relation for AGN
• The Ultraviolet Spectroscopic Evolution of the Low-Luminosity Tidal Disruption Event iPTF16fnl
• A Comparison of Radio Axis with Host Galaxy Plane Axis in Seyfert Galaxies
• The Broad Line Region and Black Hole Mass of NGC 4151
• Spin flips in generic black hole binaries
• Monitoring AGNs with H$\beta$ Asymmetry. III. Long-term Reverberation Mapping Results of 15 Palomar-Green Quasars
• Peculiar-velocity cosmology with Types Ia and II supernovae
• Constraints on the broad line region from regularized linear inversion: Velocity-delay maps for five nearby active galactic nuclei
• Multi-Wavelength Monitoring and Reverberation Mapping of a Changing Look Event in the Seyfert Galaxy NGC 3516
• Pushing the Limits of Ground-Based Photometric Precision -- Sub-Millimagnitude Time-Series Photometry of the Open Cluster NGC 6791
• Monitoring AGNs with Hβ Asymmetry. II. Reverberation Mapping of Three Seyfert Galaxies Historically Displaying Hβ Profiles with Changing Asymmetry: Mrk 79, NGC 3227, and Mrk 841
• The X-ray Power Spectral Density Function and Black Hole Mass Estimate for the Seyfert AGN IC 4329a
• Probing the nature and origin of dust in the reddened quasar IC 4329A with global modelling from X-ray to infrared
• Robotic Reverberation Mapping of the Southern Seyfert NGC 3783
• TLDR: Time Lag/Delay Reconstructor
• Detection efficiency and photometry in supernova surveys - the Stockholm VIMOS Supernova Survey I
• A Detailed View of the Broad Line Region in NGC 3783 from Velocity-Resolved Reverberation Mapping

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