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Related papers: The Supermassive Black Hole in M84 Revisited

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The supermassive black hole of M87 is one of the most massive black holes known and has been the subject of several stellar and gas-dynamical mass measurements; however the most recent revision to the stellar-dynamical black hole mass…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Jonelle L. Walsh , Aaron J. Barth , Luis C. Ho , Marc Sarzi

Despite its proximity, the mass of the supermassive black hole (SMBH) in the spiral galaxy M81 (NGC~3031) has remained uncertain, with previous dynamical measurements being unreliable. We present the first robust stellar-dynamical…

Supermassive black hole (SMBH) masses can be measured by observing their dynamical effects on tracers, such as molecular gas. We present high angular resolution Atacama Large Millimeter/submillimeter Array (ALMA) observations of the…

Astrophysics of Galaxies · Physics 2024-04-23 Pandora Dominiak , Martin Bureau , Timothy A. Davis , Chung-Pei Ma , Jenny E. Greene , Meng Gu

We present results from a kinematical study of the gas in the nucleus of a sample of three LINER galaxies, obtained from archival HST/STIS long-slit spectra. We found that, while for the elliptical galaxy NGC 5077, the observed velocity…

Astrophysics · Physics 2009-11-13 Giovanna De Francesco , Alessandro Capetti , Alessandro Marconi

The massive elliptical galaxy M87 has been the subject of several supermassive black hole mass measurements from stellar dynamics, gas dynamics, and recently the black hole shadow by the Event Horizon Telescope (EHT). This uniquely…

Astrophysics of Galaxies · Physics 2023-11-29 David A. Simon , Michele Cappellari , Johanna Hartke

We present the first measurement of the mass of a supermassive black hole (SMBH) in the nearby double-barred spiral galaxy NGC 3504 as part of the Measuring Black Holes Below the Milky Way ($M_{\star}$) mass galaxies (MBHBM$_{\star}$)…

We have obtained long-slit observations of the circumnuclear region of M87 at three different locations, with a spatial sampling of 0.028" using the Faint Object Camera f/48 spectrograph on board HST. These data allow us to determine the…

Astrophysics · Physics 2009-10-30 F. Macchetto , A. Marconi , D. J. Axon , A. Capetti , W. Sparks , P. Crane

We model the dynamical structure of M87 (NGC4486) using high spatial resolution long-slit observations of stellar light in the central regions, two-dimensional stellar light kinematics out to half of the effective radius, and globular…

Cosmology and Nongalactic Astrophysics · Physics 2009-07-24 Karl Gebhardt , Jens Thomas

New kinematic data and modeling efforts in the past few years have substantially expanded and revised dynamical measurements of black hole masses (Mbh) at the centers of nearby galaxies. Here we compile an updated sample of 72 black holes…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Nicholas J. McConnell , Chung-Pei Ma

We present the first direct measurement of the central black hole mass, M_BH, in NGC 6086, the Brightest Cluster Galaxy (BCG) in Abell 2162. Our investigation demonstrates for the first time that stellar dynamical measurements of M_BH in…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Nicholas J. McConnell , Chung-Pei Ma , James R. Graham , Karl Gebhardt , Tod R. Lauer , Shelley A. Wright , Douglas O. Richstone

We combine Hubble Space Telescope spectroscopy and ground-based integral-field data from the SAURON and OASIS instruments to study the central black hole in the nearby elliptical galaxy NGC 3379. From these data, we obtain kinematics of…

We present the first HST long-slit spectrum of a gaseous disk around a candidate super-massive black-hole. The results of this study on the kinematics of the gaseous disk in M87 are a considerable improvement in both spatial resolution and…

Astrophysics · Physics 2016-01-13 A. Marconi , D. J. Axon , F. D. Macchetto , A. Capetti , W. B. Sparks , P. Crane

We report five new measurements of central black hole masses based on STIS and WFPC2 observations with the Hubble Space Telescope and on axisymmetric, three-integral, Schwarzschild orbit-library kinematic models. We selected a sample of…

The (supermassive black hole mass, $M_\text{BH}$)-(bulge stellar mass, $M_{\rm*,sph}$) relation is, obviously, derived using two quantities. We endeavor to provide accurate values for the latter via detailed multicomponent galaxy…

Astrophysics of Galaxies · Physics 2019-03-12 Benjamin L. Davis , Alister W. Graham , Ewan Cameron

We present accurate mass measurements of the central supermassive black hole (SMBH) in NGC 4736 (M 94).\ We used the ``gold-standard" stellar absorption features (CO band heads) at $\sim$2.3 ${\rm \mu m}$, as opposed to gas emission lines,…

Black hole mass ($M_{BH}$) scaling relations are typically derived using the properties of a galaxy's bulge and samples dominated by (high-mass) early-type galaxies. Studying late-type galaxies should provide greater insight into the mutual…

Astrophysics of Galaxies · Physics 2019-03-12 Benjamin L. Davis , Alister W. Graham , Ewan Cameron

We present a theoretical model for the ionized disk in M87 which includes spiral shock waves. The line emission profiles computed from this model at various positions on the disk are found to be in agreement with the recent Hubble Space…

Astrophysics · Physics 2009-10-22 Sandip K. Chakrabarti

We present new HST/STIS observations of Centaurus A. [SIII] 9533A was used to study the kinematics in the nuclear region with a 0.1" spatial resolution. The STIS data and the VLT/ISAAC spectra by Marconi et al. (2001) provide independent…

We report the discovery of a strong correlation between the shape of a bulge's light-profile and the mass of its central supermassive black hole (M_{bh}). We find that log(M_{bh}/M_{sun}) = 2.91(+/-0.38)log(n) + 6.37(+/-0.21), where `n' is…

Astrophysics · Physics 2012-04-26 A. W. Graham , P. Erwin , N. Caon , I. Trujillo

We analyze spectra for a large sample of 578 Active Galactic Nuclei to examine the relationships between broad emission line properties and central supermassive black hole (SMBH) mass. We estimate SMBH masses by applying the virial theorem…

Astrophysics · Physics 2009-11-10 Craig Warner , Fred Hamann , Matthias Dietrich
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