Black hole mass estimation using X-ray variability measurements in Seyfert galaxies

Abstract

Our objective is to critically assess the X-ray flux variability as a tool for measuring the black hole (BH) mass in active galactic nuclei (AGN). We aim to establish a prescription for estimating BH masses based on measurements of the normalised excess variance from X-ray data. We discuss the minimum requirements in terms of the light-curve duration and X-ray signal-to-noise ratio (S/N) to enable a reliable determination that is comparable to what can be derived from the continuum and emission line reverberation studies. We used the light curves of local Seyfert from the Nuclear Spectroscopic Telescope Array hard X-ray mission (NuSTAR), to compute the normalised excess variance (NXV) in the 3-10 and 10-20 keV bands, thus extending the analysis to an energy band higher than 10 keV. The excess variance measurements were then combined with independent BH mass estimates from the literature to establish the MBH versus NXV relation for different samples and weigh its accuracy in terms of the light-curve duration and X-ray S/N. We find that it is possible to accurately measure the BH mass in AGN using excess variance measurements in the 3-10 and the 10-20 keV bands, however, strong quality requirements should be applied. The minimum necessary S/N and duration of the light curves used to compute the excess variance ought to be 3 and approximately 100 ks, respectively. We provide a linear relationship between the normalised excess variance and the black hole mass that can be used to estimate the latter, with an average uncertainty of the order of 0.4 to 0.25 dex (depending on the adopted light-curve segment duration).

arXiv comment20 pages, 8 figures

References in corpus (71)

• A Fundamental Relation Between Supermassive Black Holes and Their Host Galaxies
• A Relationship Between Nuclear Black Hole Mass and Galaxy Velocity Dispersion
• Observational Evidence of AGN Feedback
• The Nuclear Spectroscopic Telescope Array (NuSTAR) Mission
• Central Masses and Broad-Line Region Sizes of Active Galactic Nuclei. II. A Homogeneous Analysis of a Large Reverberation-Mapping Database
• The M-sigma and M-L Relations in Galactic Bulges and Determinations of their Intrinsic Scatter
• The Low-Luminosity End of the Radius-Luminosity Relationship for Active Galactic Nuclei
• Active Galactic Nuclei as scaled-up Galactic black holes
• BAT AGN Spectroscopic Survey - V. X-ray properties of the Swift/BAT 70-month AGN catalog
• Detection of the Schwarzschild precession in the orbit of the star S2 near the Galactic centre massive black hole
• The Lick AGN Monitoring Project: Broad-Line Region Radii and Black Hole Masses from Reverberation Mapping of Hbeta
• Detection of orbital motions near the last stable circular orbit of the massive black hole SgrA*
• The 105 month Swift-BAT all-sky hard X-ray survey
• Combined Long and Short Timescale X-ray Variability of NGC4051 with RXTE and XMM-Newton
• The AGN Black Hole Mass Database
• Reverberation Mapping Measurements of Black Hole Masses in Six Local Seyfert Galaxies
• An Alternative Approach To Measuring Reverberation Lags in Active Galactic Nuclei
• Cosmic X-ray Surveys of Distant Active Galaxies: The Demographics, Physics, and Ecology of Growing Supermassive Black Holes
• BAT AGN Spectroscopic Survey I: Spectral Measurements, Derived Quantities, and AGN Demographics
• Multiwavelength Monitoring of the Dwarf Seyfert 1 Galaxy NGC 4395. I. A Reverberation-Based Measurement of the Black Hole Mass
• Optical Continuum and Emission-Line Variability of Seyfert 1 Galaxies
• CAIXA: a catalogue of AGN in the XMM-Newton archive III. Excess Variance Analysis
• Understanding Dual AGN Activation in the Nearby Universe
• Supermassive black holes with high accretion rates in active galactic nuclei: I. First results from a new reverberation mapping campaign
• X-ray variability of 104 active galactic nuclei. XMM-Newton power-spectrum density profiles
• Stellar Velocity Dispersion Measurements in High-Luminosity Quasar Hosts and Implications for the AGN Black Hole Mass Scale
• Reverberation Mapping Results for Five Seyfert 1 Galaxies
• A Reverberation-Based Mass for the Central Black Hole in NGC 4151
• The Lick AGN Monitoring Project: Reverberation Mapping of Optical Hydrogen and Helium Recombination Lines
• Steps Toward Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei. XVI. A Thirteen-Year Study of Spectral Variability in NGC 5548
• 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
• Do quiescent and active galaxies have different M_BH-sigma relations?
• The Lick AGN Monitoring Project 2011: Fe II Reverberation from the Outer Broad-Line Region
• The scaling of the X-ray variability with black hole mass in AGN
• The Mass of the Central Black Hole in the Seyfert Galaxy NGC 3783
• The Mass of the Black Hole in the Seyfert 1 Galaxy NGC 4593 from Reverberation Mapping
• Space Telescope and Optical Reverberation Mapping Project. V. Optical Spectroscopic Campaign and Emission-Line Analysis for NGC 5548
• A Revised Broad-Line Region Radius and Black Hole Mass for the Narrow-Line Seyfert 1 NGC 4051
• The Size of the Narrow-Line Emitting Region in the Seyfert 1 Galaxy NGC 5548 from Emission-Line Variability
• The relationship between X-ray variability amplitude and black hole mass in active galactic nuclei
• The Sloan Digital Sky Survey Reverberation Mapping Project: Estimating Masses of Black Holes in Quasars with Single-Epoch Spectroscopy
• Steps toward Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei. XII. Ground-Based Monitoring of 3C 390.3
• The NuSTAR View of Nearby Compton-thick AGN: The Cases of NGC 424, NGC 1320 and IC 2560
• Reverberation Mapping of Optical Emission Lines in Five Active Galaxies
• Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. III. Detection of Fe II Reverberation in Nine Narrow-Line Seyfert 1 Galaxies
• The Mass of the Central Black Hole in the Seyfert Galaxy NGC 4151
• The variability plane of accreting compact objects
• Calibrating the correlation between black hole mass and X-ray variability amplitude: X-ray only black hole mass estimates for active galactic nuclei and ultra-luminous X-ray sources
• Velocity-resolved reverberation mapping of five bright Seyfert 1 galaxies
• Reverberation Mapping of the Seyfert 1 Galaxy NGC 7469
• Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. VI. Variability of NGC 3783 from ground-based data
• Black hole masses from power density spectra: determinations and consequences
• First Results from the Lick AGN Monitoring Project: The Mass of the Black Hole in Arp 151
• A Reverberation Lag for the High-Ionization Component of the Broad Line Region in the Narrow-Line Seyfert 1 Mrk 335
• AGN X-ray variability in the XMM-COSMOS survey
• Optical Monitoring of the Broad-Line Radio Galaxy 3C390.3
• Short-term emission line and continuum variations in Mrk110
• NGC6240: A triple nucleus system in the advanced or final state of merging
• Measuring X-ray variability in faint/sparsely-sampled AGN
• Spectral optical monitoring of 3C390.3 in 1995-2007: I. Light curves and flux variation of the continuum and broad lines
• The Mass of the Central Black Hole in the Nearby Seyfert Galaxy NGC5273
• A Reverberation-Based Black Hole Mass for MCG-06-30-15
• Monitoring of the optical and 2.5-11.7 micron spectrum and mid-IR imaging of the Seyfert 1 galaxy Mrk279 with ISO
• X-ray flux variability of active galactic nuclei observed using NuSTAR
• A Low-Mass Black Hole in the Nearby Seyfert Galaxy UGC 06728
• A Full Characterisation of the Supermassive Black Hole in IRAS 09149-6206
• Robotic Reverberation Mapping of the Southern Seyfert NGC 3783
• Time Series Analysis of Active Galactic Nuclei: The case of Arp 102B, 3C 390.3, NGC 5548 and NGC 4051
• Robotic Reverberation Mapping of Arp 151
• Spectral variability of the 3C 390.3 nucleus for more than twenty years. I. Variability of the broad and narrow emission-line fluxes
• The Host Galaxy of the Dwarf Seyfert UGC 06728

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