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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 (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: ------------------------------------------------------ RA (ICRS) DE Designation(s) ------------------------------------------------------ 08 28 47.12 -06 56 24.6 Mrk 1216 = MCG-01-22-013 ------------------------------------------------------ File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 70 67 Gemini Near-Infrared Integral Field Spectrometer (NIFS) kinematics
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
Bytes Format Units Label Explanations
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
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.
History: From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 31-Aug-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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