NGC 307 and the Effects of Dark-Matter Haloes on Measuring Supermassive Black Holes in Disc Galaxies

Abstract

We present stellar-dynamical measurements of the central supermassive black hole (SMBH) in the S0 galaxy NGC 307, using adaptive-optics IFU data from VLT-SINFONI. We investigate the effects of including dark-matter haloes as well as multiple stellar components with different mass-to-light (M/L) ratios in the dynamical modeling. Models with no halo and a single stellar component yield a relatively poor fit with a low value for the SMBH mass ($7.0\pm 1.0\times 10^7{M}_{\odot }$) and a high stellar M/L ratio (K-band M/L = $1.3\pm 0.1$). Adding a halo produces a much better fit, with a significantly larger SMBH mass ($2.0\pm 0.5\times 10^8{M}_{\odot }$) and a lower M/L ratio ($1.1\pm 0.1$). A model with no halo but with separate bulge and disc components produces a similarly good fit, with a slightly larger SMBH mass ($3.0\pm 0.5\times 10^8{M}_{\odot }$) and an identical M/L ratio for the bulge component, though the disc M/L ratio is biased high (disc M/L $=1.9\pm 0.1$). Adding a halo to the two-stellar-component model results in a much more plausible disc M/L ratio of $1.0\pm 0.1$, but has only a modest effect on the SMBH mass ($2.2\pm 0.6\times 10^8{M}_{\odot }$) and leaves the bulge M/L ratio unchanged. This suggests that measuring SMBH masses in disc galaxies using just a single stellar component and no halo has the same drawbacks as it does for elliptical galaxies, but also that reasonably accurate SMBH masses and bulge M/L ratios can be recovered (without the added computational expense of modeling haloes) by using separate bulge and disc components.

arXiv commentpdflatex, 27 pages, 17 figures; accepted by Monthly Notices

References in corpus (57)

• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• On the variation of the Initial Mass Function
• Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
• The Optical and Near-Infrared Properties of Galaxies: I. Luminosity and Stellar Mass Functions
• Evolutionary population synthesis: models, analysis of the ingredients and application to high-z galaxies
• On the Black Hole Mass - Bulge Mass Relation
• Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations
• The mass distribution and gravitational potential of the Milky Way
• Stellar population models of Lick indices with variable element abundance ratios
• Mass models of the Milky Way
• Efficient Multi-Gaussian Expansion of galaxies
• Improved Estimates of the Milky Way's Stellar Mass and Star Formation Rate from Hierarchical Bayesian Meta-Analysis
• Axisymmetric Dynamical Models of the Central Regions of Galaxies
• The Black Hole Mass, Stellar M/L, and Dark Halo in M87
• The SINFONI Black Hole Survey: The Black Hole Fundamental Plane revisited and the paths of (co-) evolution of supermassive black holes and bulges
• Imfit: A Fast, Flexible New Program for Astronomical Image Fitting
• Axisymmetric, 3-Integral Models of Galaxies: A Massive Black Hole in NGC3379
• A method to remove residual OH emission from near infrared spectra
• The Outer Disks of Early-Type Galaxies. I. Surface-Brightness Profiles of Barred Galaxies
• An Over-Massive Black Hole in the Compact Lenticular Galaxy NGC1277
• The Star-Forming Torus and Stellar Dynamical Black Hole Mass in the Seyfert 1 Nucleus of NGC3227
• The Milky Way Tomography with SDSS: III. Stellar Kinematics
• Dynamical modelling of luminous and dark matter in 17 Coma early-type galaxies
• Bar Diagnostics in Edge-On Spiral Galaxies. III. N-Body Simulations of Disks
• Photometric scaling relations of lenticular and spiral galaxies
• A 17-billion-solar-mass black hole in a group galaxy with a diffuse core
• Composite Bulges: The Coexistence of Classical Bulges and Disky Pseudobulges in S0 and Spiral Galaxies
• Mapping stationary axisymmetric phase-space distribution functions by orbit libraries
• The Supermassive Black Hole and Dark Matter Halo of NGC 4649 (M60)
• The Influence of Dark Matter Halos on Dynamical Estimates of Black Hole Mass: Ten New Measurements for High-sigma Early-Type Galaxies
• The old and heavy bulge of M31 I. Kinematics and stellar populations
• The Dynamical Fingerprint of Core Scouring in Massive Elliptical Galaxies
• Dark matter content and internal dynamics of NGC 4697: NMAGIC particle models from slit data and planetary nebulae velocities
• Do black hole masses scale with classical bulge luminosities only? The case of the two composite pseudobulge galaxies NGC3368 and NGC3489
• Regularized orbit models unveiling the stellar structure and dark matter halo of the Coma elliptical NGC 4807
• Fueling AGN-I: How the Global Characteristics of the Central Kiloparsec of Seyferts differ from Quiescent Galaxies
• Effect of a dark matter halo on the determination of black hole masses
• Molecular gas in the centre of nearby galaxies from VLT/SINFONI integral field spectroscopy - I. Morphology and mass inventory
• Hunting for Supermassive Black Holes in Nearby Galaxies with the Hobby-Eberly Telescope
• The central black hole mass of the high-sigma but low-bulge-luminosity lenticular galaxy NGC 1332
• Determination of masses of the central black holes in NGC524 and NGC2549 using Laser Guide Star Adaptive Optics
• A 5x10^9 Solar Mass Black Hole in NGC 1277 from Adaptive Optics Spectroscopy
• A Stellar Dynamical Measurement of the Black Hole Mass in the Maser Galaxy NGC 4258
• The supermassive black hole of Fornax A
• Evidence of a Supermassive Black Hole in the Galaxy NGC 1023 from the Nuclear Stellar Dynamics
• 2D kinematic signatures of boxy/peanut bulges
• The supermassive black hole in NGC4486a detected with SINFONI at the VLT
• Kinematical signatures of hidden stellar discs
• Orbit-Based Dynamical Models of the Sombrero Galaxy (NGC 4594)
• The Black Hole in the Compact, High-dispersion Galaxy NGC 1271
• MRK 1216 & NGC 1277 - An orbit-based dynamical analysis of compact, high velocity dispersion galaxies
• Orbital structure in barred spiral galaxies
• Dust and the Infrared Kinematic Properties of Early-Type Galaxies
• The Black Hole Mass in Brightest Cluster Galaxy NGC 6086
• Surprises in Image Decomposition of Edge-on Galaxies: does Sombrero have a (classical) bulge?
• Re-growth of stellar disks in mature galaxies: The two component nature of NGC 7217 revisited with VIRUS-W
• The Effect of Spatial Gradients in Stellar Mass-to-Light Ratio on Black Hole Mass Measurements

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