STELLAR VELOCITY DISPERSION MEASUREMENTS IN HIGH-LUMINOSITY QUASAR HOSTS AND IMPLICATIONS FOR THE AGN BLACK HOLE MASS SCALE

By C. Grier, P. Martini, L. Watson, B. Peterson, M. Bentz, K. Dasyra, M. Dietrich, L. Ferrarese, R. Pogge, Y. Zu. 2013

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We present new stellar velocity dispersion measurements for four luminous quasars with the Near-Infrared Integral Field Spectrometer instrument and the ALTAIR laser guide star adaptive optics system on the Gemini North 8 m telescope. Stellar velocity dispersion measurements and measurements of the supermassive black hole (BH) masses in luminous quasars are necessary to investigate the coevolution of BHs and galaxies, trace the details of accretion, and probe the nature of feedback. We find that higher-luminosity quasars with higher-mass BHs are not offset with respect to the MBH–σ* relation exhibited by lower-luminosity active galactic nuclei (AGNs) with lower-mass BHs, nor do we see correlations with galaxy morphology. As part of this analysis, we have recalculated the virial products for the entire sample of reverberation-mapped AGNs and used these data to redetermine the mean virial factor 〈f〉 that places the reverberation data on the quiescent MBH–σ* relation. With our updated measurements and new additions to the AGN sample, we obtain 〈f〉 = 4.31 ± 1.05, which is slightly lower than, but consistent with, most previous determinations.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/8a19521c43aedb128120d64177d08fe6af786a84

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Citations in the corpus

The Coevolution of Galaxies and Supermassive Black Holes: Insights from Surveys of the Contemporary Universe (2014, background): “9), and this conclusion was reinforced by an investigation of powerful AGN with more massive black holes by Grier et al. (2013).”
THE LICK AGN MONITORING PROJECT 2011: SPECTROSCOPIC CAMPAIGN AND EMISSION-LINE LIGHT CURVES (2015, methodology): “Measured transfer functions (Bentz et al. 2010b; Grier et al. 2013a) will thus represent temporally smeared averages of intrinsically timevarying functions.”
DWARF GALAXIES WITH OPTICAL SIGNATURES OF ACTIVE MASSIVE BLACK HOLES (2013, methodology): “Several values of the scale factor, , are found in the literature8, spanning a range of ∼ 0.75−1.4 (e.g., Onken et al. 2004; Greene & Ho 2007a; Grier et al. 2013).”
BLACK HOLE MASS ESTIMATES AND EMISSION-LINE PROPERTIES OF A SAMPLE OF REDSHIFT z > 6.5 QUASARS (2013, background): “…RBLR) with the velocity of the clouds emitting at RBLR (vBLR), MBH = f G−1 RBLR v2BLR, (14) where the factor f is a scale factor that depends on inclination, geometry and kinematics of the BLR (e.g., Peterson & Wandel 1999; Decarli et al. 2008; Grier et al 2013) and G is the gravitational constant.”
THE MAN BEHIND THE CURTAIN: X-RAYS DRIVE THE UV THROUGH NIR VARIABILITY IN THE 2013 ACTIVE GALACTIC NUCLEUS OUTBURST IN NGC 2617 (2013, unknown): “Assumingf = 4.31±1.05 (Grier et al. 2013a) and using the Hβ σline estimate from the RMS spectrum, we obtainMBH = (4±1)×107 M⊙.”
Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. IX. 10 New Observations of Reverberation Mapping and Shortened Hβ Lags (2018, methodology): “…the same way, by comparing the RM objects with measurements of bulge stellar velocity dispersion (σ*) with the M•–σ* relation of inactive galaxies (e.g., Onken et al. 2004; Woo et al. 2010; Park et al. 2012; Grier et al. 2013; Ho & Kim 2014; Woo et al. 2015, see a brief review in Du et al. 2017).”
RELATIONS BETWEEN CENTRAL BLACK HOLE MASS AND TOTAL GALAXY STELLAR MASS IN THE LOCAL UNIVERSE (2015, methodology): “…factor is generally adopted from calibrating the ensemble of reverberation-based BH masses to the MBH − σ⋆ relation (e.g., Gebhardt et al. 2000b; Ferrarese et al. 2001; Nelson et al. 2004; Onken et al. 4 Reines et al. 2004; Greene & Ho 2006; Park et al. 2012; Grier et al. 2013; Ho & Kim 2014).”
Selection bias in dynamically measured supermassive black hole samples: its consequences and the quest for the most fundamental relation (2016, methodology): “…normalization of the intrinsicMbh-σ relation will serve as a more secure base for calibrating virial estimators of black hole mass for reverberation mapping-based scalingrelations (e.g., Onken et al. 2004; Woo et al. 2010; Graham et al. 2011; Park et al. 2012a; Grier et al. 2013; Ho & Kim 2015).”
Modelling reverberation mapping data – II. Dynamical modelling of the Lick AGN Monitoring Project 2008 data set (2013, methodology): “…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; Denney et al. 2010; Grier et al. 2013a), where non-gravitational forces may be at work.”