The BRAVE Program. I. Improved Bulge Stellar Velocity Dispersion Estimates for a Sample of Active Galaxies

Merida Batiste; Misty C. Bentz; Emily R. Manne-Nicholas; Christopher A. Onken; Matthew A. Bershady

doi:10.3847/1538-4357/835/2/271

The BRAVE Program. I. Improved Bulge Stellar Velocity Dispersion Estimates for a Sample of Active Galaxies

Merida Batiste, Misty C. Bentz, Emily R. Manne-Nicholas, Christopher A. Onken, Matthew A. Bershady

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

We present new bulge stellar velocity dispersion measurements for 10 active galaxies with secure M_BH determinations from reverberation mapping. These new velocity dispersion measurements are based on spatially resolved kinematics from integral-field (IFU) spectroscopy. In all but one case, the field of view of the IFU extends beyond the effective radius of the galaxy, and in the case of Mrk 79 it extends to almost one half the effective radius. This combination of spatial resolution and field of view allows for secure determinations of stellar velocity dispersion within the effective radius for all 10 target galaxies. Spatially resolved maps of the first (V) and second (σ_∗) moments of the line of sight velocity distribution indicate the presence of kinematic substructure in most cases. In future projects we plan to explore methods of correcting for the effects of kinematic substructure in the derived bulge stellar velocity dispersion measurements.

Original language	English
Article number	271
Journal	Astrophysical Journal
Volume	835
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/835/2/271
Publication status	Published - 1 Feb 2017

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title = "The BRAVE Program. I. Improved Bulge Stellar Velocity Dispersion Estimates for a Sample of Active Galaxies",

abstract = "We present new bulge stellar velocity dispersion measurements for 10 active galaxies with secure MBH determinations from reverberation mapping. These new velocity dispersion measurements are based on spatially resolved kinematics from integral-field (IFU) spectroscopy. In all but one case, the field of view of the IFU extends beyond the effective radius of the galaxy, and in the case of Mrk 79 it extends to almost one half the effective radius. This combination of spatial resolution and field of view allows for secure determinations of stellar velocity dispersion within the effective radius for all 10 target galaxies. Spatially resolved maps of the first (V) and second (σ∗) moments of the line of sight velocity distribution indicate the presence of kinematic substructure in most cases. In future projects we plan to explore methods of correcting for the effects of kinematic substructure in the derived bulge stellar velocity dispersion measurements.",

keywords = "galaxies: active, galaxies: bulges, galaxies: kinematics and dynamics, galaxies: nuclei",

author = "Merida Batiste and Bentz, {Misty C.} and Manne-Nicholas, {Emily R.} and Onken, {Christopher A.} and Bershady, {Matthew A.}",

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T1 - The BRAVE Program. I. Improved Bulge Stellar Velocity Dispersion Estimates for a Sample of Active Galaxies

AU - Batiste, Merida

AU - Bentz, Misty C.

AU - Manne-Nicholas, Emily R.

AU - Onken, Christopher A.

AU - Bershady, Matthew A.

PY - 2017/2/1

Y1 - 2017/2/1

N2 - We present new bulge stellar velocity dispersion measurements for 10 active galaxies with secure MBH determinations from reverberation mapping. These new velocity dispersion measurements are based on spatially resolved kinematics from integral-field (IFU) spectroscopy. In all but one case, the field of view of the IFU extends beyond the effective radius of the galaxy, and in the case of Mrk 79 it extends to almost one half the effective radius. This combination of spatial resolution and field of view allows for secure determinations of stellar velocity dispersion within the effective radius for all 10 target galaxies. Spatially resolved maps of the first (V) and second (σ∗) moments of the line of sight velocity distribution indicate the presence of kinematic substructure in most cases. In future projects we plan to explore methods of correcting for the effects of kinematic substructure in the derived bulge stellar velocity dispersion measurements.

AB - We present new bulge stellar velocity dispersion measurements for 10 active galaxies with secure MBH determinations from reverberation mapping. These new velocity dispersion measurements are based on spatially resolved kinematics from integral-field (IFU) spectroscopy. In all but one case, the field of view of the IFU extends beyond the effective radius of the galaxy, and in the case of Mrk 79 it extends to almost one half the effective radius. This combination of spatial resolution and field of view allows for secure determinations of stellar velocity dispersion within the effective radius for all 10 target galaxies. Spatially resolved maps of the first (V) and second (σ∗) moments of the line of sight velocity distribution indicate the presence of kinematic substructure in most cases. In future projects we plan to explore methods of correcting for the effects of kinematic substructure in the derived bulge stellar velocity dispersion measurements.

KW - galaxies: active

KW - galaxies: bulges

KW - galaxies: kinematics and dynamics

KW - galaxies: nuclei

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DO - 10.3847/1538-4357/835/2/271

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JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 271

ER -

The BRAVE Program. I. Improved Bulge Stellar Velocity Dispersion Estimates for a Sample of Active Galaxies

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