REVERBERATION MAPPING MEASUREMENTS OF BLACK HOLE MASSES IN SIX LOCAL SEYFERT GALAXIES

By K. Denney, B. Peterson, R. Pogge, A. Adair, D. Atlee, K. Au-Yong, M. Bentz, J. Bird, D. Brokofsky, E. Chisholm and 33 more. 2010

263 citations recorded by the source corpus.

We present the final results from a high sampling rate, multi-month, spectrophotometric reverberation mapping campaign undertaken to obtain either new or improved Hβ reverberation lag measurements for several relatively low-luminosity active galactic nuclei (AGNs). We have reliably measured the time delay between variations in the continuum and Hβ emission line in six local Seyfert 1 galaxies. These measurements are used to calculate the mass of the supermassive black hole at the center of each of these AGNs. We place our results in context to the most current calibration of the broad-line region (BLR) RBLR–L relationship, where our results remove outliers and reduce the scatter at the low-luminosity end of this relationship. We also present velocity-resolved Hβ time-delay measurements for our complete sample, though the clearest velocity-resolved kinematic signatures have already been published.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/298fe94b677cba170f010ad36658cd46ef1175cd

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Citations in the corpus

• REVERBERATION MAPPING RESULTS FOR FIVE SEYFERT 1 GALAXIES (2012, methodology): “In general, we follow the observational and data reduction practices of Denney et al. (2010) for the spectroscopic observations.”
• SPACE TELESCOPE AND OPTICAL REVERBERATION MAPPING PROJECT. II. SWIFT AND HST REVERBERATION MAPPING OF THE ACCRETION DISK OF NGC 5548 (2015, unknown): “For NGC 5548 the current best mass estimate is MBH ∼ 3.2 × 107 M⊙ (Denney et al. 2010, Pancoast et al. 2014).”
• REVERBERATION MEASUREMENTS OF THE INNER RADIUS OF THE DUST TORUS IN 17 SEYFERT GALAXIES (2014, methodology): “We enlarged the data for reverberation radii of the BLR by adding the results of the recent reverberation observations for Hβ emission lines (Bentz et al. 2006b, 2007, 2009a,b; Denney et al. 2010; Barth et al. 2011a,b; Grier et al. 2012b).”
• THE LICK AGN MONITORING PROJECT 2011: SPECTROSCOPIC CAMPAIGN AND EMISSION-LINE LIGHT CURVES (2015, background): “…reverberation programs, including Mrk 40 (Arp 151; Bentz et al. 2008, 2009b), Mrk 279 (Maoz et al. 1990; Santos-Lleó et al. 2001), Mrk 817 (Peterson et al. 1998; Denney et al. 2010), NGC 4593 (Dietrich et al. 1994; Onken et al. 2003; Denney et al. 2006), and Zw 229-015 (Barth et al. 2011a).”
• Determining Inclinations of Active Galactic Nuclei Via Their Narrow-Line Region Kinematics (2012, background): “…using reverberation mapping, where BLR size, estimated from the time lag between corresponding ionizing continuum and broad line emission fluxes, and broad-line velocities are combined to calculate the AGN black hole mass (Peterson et al. 2004; Bentz et al. 2006; Denney et al. 2009, 2010).”
• Modelling reverberation mapping data – II. Dynamical modelling of the Lick AGN Monitoring Project 2008 data set (2013, background): “Many of these velocity-resolved lag estimates are consistent with bound orbits in a Keplerian potential (Bentz et al. 2009; Denney et al. 2010; Barth et al. 2011a,b; Grier et al. 2013a), but some show additional kinematic signatures consistent with inflowing or outflowing gas (Bentz et al. 2009;…”
• Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. IX. 10 New Observations of Reverberation Mapping and Shortened Hβ Lags (2018, background): “Different works adopt different line width measurements (e.g., Peterson et al. 2004; Bentz et al. 2009; Denney et al. 2010; Grier et al. 2012; Kaspi et al. 2005, Papers I–”
• Adaptive Optics for Astronomy (2012, background): “The most recent reverberation mass of (7.6± 1.7) × 10 6 M⊙ derived from a well sampled light curve (Denney et al. 2010) is consistent with this range.”
• X-ray reverberation around accreting black holes (2014, methodology): “Optical reverberation studies of AGN use time-domain techniques to measure time-lags, specifically the cross-correlation function (e.g. Peterson 1993; Peterson et al. 2004; Bentz et al. 2009; Denney et al. 2010).”
• THE LOW-LUMINOSITY END OF THE RADIUS–LUMINOSITY RELATIONSHIP FOR ACTIVE GALACTIC NUCLEI (2013, background): “…recent campaigns at MDM Observatory have mainly focused on replacing poorly sampled or noisy reverberation data sets with high signal-to noise ratio (S/N), high temporal cadence spectroscopy (Denney et al. 2010; Grier et al. 2012) to allow better constraints on the BLR structure and kinematics.”
• RELATIONS BETWEEN CENTRAL BLACK HOLE MASS AND TOTAL GALAXY STELLAR MASS IN THE LOCAL UNIVERSE (2015, methodology): “While these parameters have been seen to vary from object to object (Kollatschny 2003; Bentz et al. 2009; Denney et al. 2010; Barth et al. 2011), a single scaling factor is generally adopted from calibrating the ensemble of reverberation-based BH masses to the MBH − σ⋆ relation (e.g., Gebhardt et…”
• THE STRUCTURE OF THE BROAD-LINE REGION IN ACTIVE GALACTIC NUCLEI. I. RECONSTRUCTED VELOCITY-DELAY MAPS (2012, background): “This allows us to estimate the mean radius of the BLR (e.g., Peterson et al. 2004; Denney et al. 2010; Bentz et al. 2010a; Grier et al. 2012), but it reveals very little information about the detailed structure of the BLR.”
• The Sloan Digital Sky Survey Reverberation Mapping Project: Hα and Hβ Reverberation Measurements from First-year Spectroscopy and Photometry (2017, methodology): “Thus far, about 60 AGN have MBH measurements obtained through reverberation mapping (e.g., Peterson et al. 2004; Kaspi et al. 2000, 2005; Bentz et al. 2009, 2010; Denney et al. 2010; Barth et al. 2015; Grier et al. 2012; Du et al. 2014, 2016b,a; Hu et al. 2015).”
• First X-ray-based statistical tests for clumpy-torus models: eclipse events from 230 years of monitoring of Seyfert AGN (2014, unknown): “References for Column (5) are: B08 = Beckert et al. (2008), D10 = Denney et al. (2010), Ga11 = Gallo et al. (2011), Go11 = Gofford et al. (2011), K07 = Kelly & Bechtold (2007), L02 = Lutz et al. (2002), L08 = Landt et al. (2008), L11 = Lira et al. (2011), Ma07 = Markowitz et al. (2007), M09 =…”
• Measuring the Masses of Supermassive Black Holes (2014, background): “…a consortium of astronomers primarily in eastern Europe, Mexico, and Germany (e.g., Shapovalova et al. 2010; Popović et al. 2011; Shapovalova et al. 2012) and by the author’s group of collaborators (Bentz et al. 2006b; Denney et al. 2006; Bentz et al. 2007; Denney et al. 2010; Grier et al. 2012b).”
• DWARF GALAXIES WITH OPTICAL SIGNATURES OF ACTIVE MASSIVE BLACK HOLES (2013, methodology): “The BLR size has been measured only for ∼ 50 active galaxies using reverberation mapping (e.g., Peterson et al. 2004; Bentz et al. 2009b; Denney et al. 2010; Barth et al. 2011; Bentz et al. 2013), in which the time lag between continuum and BLR variability establishes a size scale for the BLR.”