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A Supermassive Black Hole Mass Measurement in NGC 5102 with Schwarzschild Orbit-superposition Modeling
Thomas K. Waters, Kayhan Gultekin, Karl Gebhardt +2
We present a stellar-dynamical mass measurement of the central black hole in the lenticular galaxy NGC~5102 (SA0). Our analysis combines high-quality integral-field spectroscop…
ReveaLLAGN 1: JWST Emission-Line Spectra Reveal Low-Luminosity AGN with UV-Deficient SEDs and Warm Molecular Gas
Kameron Goold, Anil Seth, Mallory Molina +20
We present near- and mid-infrared spectra of eight Low-Luminosity Active Galactic Nuclei (LLAGN), spanning nearly four orders of magnitude in black hole mass and Eddington ratio, o…
The Black Hole Mass and Photometric Components of NGC 4826
Kayhan Gültekin, Karl Gebhardt, John Kormendy +6
We present IR photometry and HST imaging and spectroscopy of Sab galaxy NGC 4826. Schwarzschild dynamical modeling is used to measure its central black hole mass . Photometric d…
Modeling ALMA Observations of the Warped Molecular Gas Disk in the Red Nugget Relic Galaxy NGC 384
Jonathan H. Cohn, Maeve Curliss, Jonelle L. Walsh +9
We present 0-resolution CO(21) observations of the circumnuclear gas disk in the local compact galaxy NGC 384 with the Atacama Large Millimeter/submill…
A Stellar Dynamical Mass Measurement of the Supermassive Black Hole in NGC 3258
Thomas K. Waters, Kayhan Gültekin, Karl Gebhardt +2
We present a stellar dynamical mass measurement of the supermassive black hole in the elliptical (E1) galaxy NGC 3258. Our findings are based on integral field unit spectroscopy fr…
Connecting Core Galaxy Properties to the Massive Black Hole Binary Population
CJ Harris, Kayhan Gultekin
We investigate how the properties of massive black hole binaries influence the observed properties of core galaxies. We compare the observed trend in stellar mass deficit as a func…
ALMA gas-dynamical mass measurement of the supermassive black hole in the red nugget relic galaxy PGC 11179
Jonathan H. Cohn, Maeve Curliss, Jonelle L. Walsh +10
We present 0-resolution Atacama Large Millimeter/submillimeter Array (ALMA) observations of CO(21) emission from the circumnuclear gas disk in the red nu…
The Impact of Black Hole Scaling Relation Assumptions on the Mass Density of Black Holes
Cayenne Matt, Kayhan Gültekin, Joseph Simon
We examine the effect of supermassive black hole (SMBH) mass scaling relation choice on the inferred SMBH mass population since redshift . To make robust predictions for…
ReveaLLAGN 0: First Look at JWST MIRI data of Sombrero and NGC 1052
K. Goold, A. Seth, M. Molina +28
We present the first results from the Revealing Low-Luminosity Active Galactic Nuclei (ReveaLLAGN) survey, a JWST survey of seven nearby LLAGN. We focus on two observations with th…
The NANOGrav 12.5-year Data Set: Bayesian Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries
Zaven Arzoumanian, Paul T. Baker, Laura Blecha +75
Pulsar timing array collaborations, such as the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), are seeking to detect nanohertz gravitational waves emitted…
Gas inflows in the polar ring of NGC 4111: the birth of an AGN
Gabriel R. Hauschild-Roier, Thaisa Storchi-Bergmann, Richard M. McDermid +14
We have used Hubble Space Telescope (HST) images, SAURON Integral Field Spectroscopy (IFS) and adaptative optics assisted Gemini NIFS near-infrared K-band IFS to map the stellar an…
H Reverberation Mapping of the Intermediate-Mass Active Galactic Nucleus in NGC 4395
Hojin Cho, Jong-Hak Woo, Tommaso Treu +24
We present the results of a high-cadence spectroscopic and imaging monitoring campaign of the active galactic nucleus (AGN) of NGC 4395. High signal-to-noise-ratio spectra were obt…
Properties of cold molecular gas in four type-1 active galaxies hosting outflows
Jessie C. Runnoe, Kayhan Gültekin, David Rupke +1
Feedback from active galactic nuclei (AGN) has proven to be a critical ingredient in the current picture of galaxy assembly and growth. However, observational constraints on AGN-dr…
An ALMA Gas-dynamical Mass Measurement of the Supermassive Black Hole in the Local Compact Galaxy UGC 2698
Jonathan H. Cohn, Jonelle L. Walsh, Benjamin D. Boizelle +9
We present 0\farcs{14}-resolution Atacama Large Millimeter/submillimeter Array (ALMA) CO(21) observations of the circumnuclear gas disk in UGC 2698, a local compact galaxy. The…
Does the Compact Radio Jet in PG 1700+518 Drive a Molecular Outflow?
Jessie Runnoe, Kayhan Gültekin, David Rupke
Radio jets play an important role in quasar feedback, but direct observations showing how the jets interact with the multi-phase interstellar medium of galaxy disks are few and far…
A Radio Relic and a Search for the Central Black Hole in the Abell 2261 Brightest Cluster Galaxy
Sarah Burke-Spolaor, Kayhan Gultekin, Marc Postman +4
We present VLA images and HST/STIS spectra of sources within the center of the brightest cluster galaxy (BCG) in Abell 2261. These observations were obtained to test the hypothesis…
Quasar-Mode Feedback in Nearby Type 1 Quasars: Ubiquitous Kiloparsec-Scale Outflows and Correlations with Black Hole Properties
David Rupke, Kayhan Gültekin, Sylvain Veilleux
The prevalence and properties of kiloparsec-scale outflows in nearby Type 1 quasars have been the subject of little previous attention. This work presents Gemini integral field spe…
The structural and dynamical properties of compact elliptical galaxies
Akın Yıldırım, Remco C. E. van den Bosch, Glenn van de Ven +5
Dedicated photometric and spectroscopic surveys have provided unambiguous evidence for a strong stellar mass-size evolution of galaxies within the last 10 Gyr. The likely progenito…
A Black Hole Mass Determination for the Compact Galaxy Mrk 1216
Jonelle L. Walsh, Remco C. E. van den Bosch, Karl Gebhardt +4
Mrk 1216 is a nearby, early-type galaxy with a small effective radius of 2.8 kpc and a large stellar velocity dispersion of 308 km/s for its K-band luminosity of 1.4x10^11 L_sun. U…
A 5x10^9 Solar Mass Black Hole in NGC 1277 from Adaptive Optics Spectroscopy
Jonelle L. Walsh, Remco C. E. van den Bosch, Karl Gebhardt +4
The nearby lenticular galaxy NGC 1277 is thought to host one of the largest black holes known, however the black hole mass measurement is based on low spatial resolution spectrosco…
The massive dark halo of the compact, early-type galaxy NGC 1281
Akın Yıldırım, Remco van den Bosch, Glenn van de Ven +7
We investigate the compact, early-type galaxy NGC 1281 with integral field unit observations to map the stellar LOSVD out to 5 effective radii and construct orbit-based dynamical m…
MRK 1216 & NGC 1277 - An orbit-based dynamical analysis of compact, high velocity dispersion galaxies
Akın Yıldırım, Remco van den Bosch, Glenn van de Ven +5
We present a dynamical analysis to infer the structural parameters and properties of the two nearby, compact, high velocity dispersion galaxies MRK1216 & NGC1277. Combining deep HS…
The Black Hole in the Compact, High-dispersion Galaxy NGC 1271
Jonelle L. Walsh, Remco C. E. van den Bosch, Karl Gebhardt +4
Located in the Perseus cluster, NGC 1271 is an early-type galaxy with a small effective radius of 2.2 kpc and a large stellar velocity dispersion of 276 km/s for its K-band luminos…
Swift/UVOT grism monitoring of NGC 5548 in 2013: an attempt at MgII reverberation mapping
E. M. Cackett, K. Gultekin, M. C. Bentz +4
Reverberation-mapping-based scaling relations are often used to estimate the masses of black holes from single-epoch spectra of AGN. While the radius-luminosity relation that is th…