J/ApJ/835/208 2D stellar kinematics of Mrk 1216 (Walsh+, 2017)
A black hole mass determination for the compact galaxy Mrk 1216.
Walsh J.L., van den Bosch R.C.E., Gebhardt K., Yildirim A., Gultekin K.,
Husemann B., Richstone D.O.
<Astrophys. J., 835, 208-208 (2017)>
=2017ApJ...835..208W 2017ApJ...835..208W (SIMBAD/NED BibCode)
ADC_Keywords: Radial velocities ; Velocity dispersion ; Galaxies, nearby ;
Spectra, infrared
Keywords: black hole physics; galaxies: elliptical and lenticular, cD;
galaxies: individual: Mrk 1216;
galaxies: kinematics and dynamics; galaxies: nuclei
Abstract:
Mrk 1216 is a nearby, early-type galaxy with a small effective radius
of 2.8kpc and a large stellar velocity dispersion of 308km/s for its
K-band luminosity of 1.4x1011L☉. Using integral field
spectroscopy assisted by adaptive optics from Gemini North, we measure
spatially resolved stellar kinematics within ∼450pc of the galaxy
nucleus. The galaxy exhibits regular rotation with velocities of
±180km/s and a sharply peaked velocity dispersion profile that
reaches 425km/s at the center. We fit axisymmetric, orbit-based
dynamical models to the combination of these high angular resolution
kinematics, large-scale kinematics extending to roughly three
effective radii, and Hubble Space Telescope imaging, resulting in a
constraint of the mass of the central black hole in Mrk 1216. After
exploring several possible sources of systematics that commonly affect
stellar-dynamical black hole mass measurements, we find a black hole
mass of MBH=(4.9±1.7)x109M☉ and an H-band stellar
mass-to-light ratio of ΥH=1.3±0.4Υ☉
(1σ uncertainties). Mrk 1216 is consistent with the local black
hole mass-stellar velocity dispersion relation, but is a factor of
∼5-10 larger than expectations from the black hole mass-bulge
luminosity and black hole mass-bulge mass correlations when
conservatively using the galaxy's total luminosity or stellar mass.
This behavior is quite similar to the extensively studied compact
galaxy NGC 1277. Resembling the z∼2 quiescent galaxies, Mrk 1216 may
be a passively evolved descendant, and perhaps reflects a previous era
when galaxies contained over-massive black holes relative to their
bulge luminosities/masses, and the growth of host galaxies had yet to
catch up.
Description:
We obtained a Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3)
F160W image of Mrk 1216. The WFC3/IR observations were executed under
program GO-13050.
We also observed Mrk 1216 with the Near-Infrared Integral Field
Spectrometer (NIFS) aided by the ALTitude conjugate Adaptive optics
for the InfraRed system (ALTAIR) on Gemini North. The observations
were taken on 2013 December 21 under program GN-2013A-Q-1. The
observations were acquired with the H+K filter and the K grating
centered on 2.2um.
Objects:
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RA (ICRS) DE Designation(s)
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08 28 47.12 -06 56 24.6 Mrk 1216 = MCG-01-22-013
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 70 67 Gemini Near-Infrared Integral Field Spectrometer
(NIFS) kinematics
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See also:
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
J/AJ/113/950 : Kinematic Profiles of S0 Galaxies (Fisher 1997)
J/ApJS/152/251 : Indo-US library of coude feed stellar spectra (Valdes+, 2004)
J/MNRAS/371/703 : MILES library of empirical spectra (Sanchez-Blazquez+, 2006)
J/ApJ/662/808 : Cusp radius in luminous elliptical galaxies (Lauer+, 2007)
J/ApJ/690/20 : Models of the AGN and black hole populations (Shankar+, 2009)
J/A+A/521/A55 : The mass function of nearby black holes (Caramete+, 2010)
J/ApJS/203/24 : Structural param. of galaxies in CANDELS (van der Wel+, 2012)
J/AJ/146/45 : Spectroscopy of 6 early-type galaxies (Rusli+, 2013)
J/ApJS/218/10 : HET Massive Galaxy Survey (HETMGS) (van den Bosch+, 2015)
J/ApJ/808/183 : NGC1271 stellar kinematics (Walsh+, 2015)
J/ApJ/826/L32 : Black hole masses in megamaser disk galaxies (Greene+, 2016)
J/ApJ/831/134 : BH masses & host galaxy dispersion vel. (van den Bosch, 2016)
J/ApJ/817/2 : High angular resolution spectrosc. of NGC 1277 (Walsh+, 2016)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 F6.3 arcsec X X location of the Voronoi bin generator (1)
8- 13 F6.3 arcsec Y Y location of the Voronoi bin generator (1)
15- 22 F8.3 km/s RV [-176/181] Radial velocity (2)
24- 29 F6.3 km/s e_RV [11/23] Uncertainty in RV
31- 37 F7.3 km/s sigma [232/426] Velocity dispersion σ (2)
39- 44 F6.3 km/s e_sigma [15/34] Uncertainty in sigma
46- 51 F6.3 --- h3 [-0.08/0.07] Third Gauss-Hermite moment (2)
53- 57 F5.3 --- e_h3 Uncertainty in h3
59- 64 F6.3 --- h4 [-0.09/0.09] Fourth Gauss-Hermite moment (2)
66- 70 F5.3 --- e_h4 Uncertainty in h4
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Note (1): The position angle is 283.94 degrees counterclockwise from the
galaxy's major axis to X.
Note (2): The NIFS kinematics have been point-symmetrized.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 31-Aug-2017