activity
20162023
most citedThe Exoplanet Mass-Ratio Function from the MOA-II Survey: Discovery of a Break and Likely Peak at a Neptune Mass

278 citations · 1.1k across the 24 of their papers we have counts for

collaborators

24 papers

astro-ph.GA2023

5-12 pc resolution ALMA imaging of gas and dust in the obscured compact nucleus of IRAS 17578-0400

Chentao Yang, Susanne Aalto, Sabine König +7

We here present 0.02-0.04'' resolution ALMA observation of the compact obscured nucleus (CON) of IRAS17578-0400. A dusty torus within the nucleus, approximately 4 pc in radius, has…

astro-ph.GA2022★ 13 cited

Extreme nature of four blue-excess dust-obscured galaxies revealed by optical spectroscopy

Akatoki Noboriguchi, Tohru Nagao, Yoshiki Toba +13

We report optical spectroscopic observations of four blue-excess dust-obscured galaxies (BluDOGs) identified by Subaru Hyper Suprime-Cam. BluDOGs are a sub-class of dust-obscured g…

astro-ph.GA2022★ 12 cited

The Opaque Heart of the Galaxy IC 860: Analogous Protostellar, Kinematics, Morphology, and Chemistry

M. D. Gorski, S. Aalto, S. König +7

Compact Obscured Nuclei (CONs) account for a significant fraction of the population of luminous and ultraluminous infrared galaxies (LIRGs and ULIRGs). These galaxy nuclei are comp…

astro-ph.GA2022★ 10 cited

Multi-line assessment of narrow-line regions in 3 radio galaxies

Koki Terao, Tohru Nagao, Kyoko Onishi +4

In this paper, we utilize high-quality rest-UV spectra of three radio galaxies at 3 observed with VLT/FORS2 to measure the flux of several emission lines including relativ…

astro-ph.GA2021

Cross-checking SMBH mass estimates in NGC 6958 -- I: Stellar dynamics from adaptive optics-assisted MUSE observations

Sabine Thater, Davor Krajnović, Peter M. Weilbacher +9

Supermassive black hole masses (MBH) can dynamically be estimated with various methods and using different kinematic tracers. Different methods have only been cross-checked for a s…

astro-ph.GA2021★ 10 cited

Hard X-ray Irradiation Potentially Drives Negative AGN Feedback by Altering Molecular Gas Properties

Taiki Kawamuro, Claudio Ricci, Takuma Izumi +4

To investigate the role of active galactic nucleus (AGN) X-ray irradiation on the interstellar medium (ISM), we systematically analyzed Chandra and ALMA CO(=2-1) data for 26 ult…

astro-ph.GA2021★ 12 cited

Discovery of Methanimine Megamasers Toward Compact Obscured Galaxy Nuclei

Mark Gorski, Susanne Aalto, Jeffrey Mangum +8

We present the first search for the 5.29 GHz methanimine() transition toward a sample of galaxy nuclei. We target seven galaxies that host Compact…

astro-ph.GA2021★ 44 cited

WISDOM Project -- IX Giant Molecular Clouds in the Lenticular Galaxy NGC4429: Effects of Shear and Tidal Forces on Clouds

Lijie Liu, Martin Bureau, Leo Blitz +5

We present high spatial resolution (12pc) Atacama Large Millimeter/sub-millimeter Array CO(J=3-2) observations of the nearby lenticular galaxy NGC4429. We identify 217 giant molecu…

astro-ph.GA2021★ 22 cited

WISDOM project -- VIII. Multi-scale feedback cycles in the brightest cluster galaxy NGC 0708

Eve V. North, Timothy A. Davis, Martin Bureau +8

We present high-resolution (synthesised beam size 0."088x0."083 or 25x23 pc) Atacama Large Millimetre/submillimetre Array (ALMA) CO(2-1) line and 236 GHz continuum obser…

astro-ph.GA2021★ 27 cited

WISDOM Project -- VII. Molecular gas measurement of the supermassive black hole mass in NGC 7052

Mark D. Smith, Martin Bureau, Timothy A. Davis +7

Supermassive black hole (SMBH) masses can be measured by resolving the dynamical influences of the SMBHs on spatially-resolved tracers of the central potentials. Modern long-baseli…

astro-ph.GA2021★ 66 cited

CON-quest: Searching for the most obscured galaxy nuclei

N. Falstad, S. Aalto, S. König +28

Some luminous and ultraluminous infrared galaxies (LIRGs and ULIRGs) host extremely compact and dusty nuclei. The intense infrared radiation arising from warm dust in these sources…

astro-ph.GA2020★ 20 cited

WISDOM project -- VI. Exploring the relation between supermassive black hole mass and galaxy rotation with molecular gas

Mark D. Smith, Martin Bureau, Timothy A. Davis +6

Empirical correlations between the masses of supermassive black holes (SMBHs) and properties of their host galaxies are well-established. Among these is the correlation with the fl…

astro-ph.GA2020★ 51 cited

ALMA 0.02"-resolution observations reveal HCN-abundance-enhanced counter-rotating and outflowing dense molecular gas at the NGC 1068 nucleus

Masatoshi Imanishi, Dieu D. Nguyen, Keiichi Wada +6

We present ALMA ~0.02"-resolution observations of the nucleus of the nearby (~14 Mpc) type-2 AGN NGC 1068 at HCN/HCO+/HNC J=3-2 lines, as well as at their 13C isotopologue and vibr…

astro-ph.GA2020★ 69 cited

Revealing the intermediate-mass black hole at the heart of the dwarf galaxy NGC 404 with sub-parsec resolution ALMA observations

Timothy A. Davis, Dieu D. Nguyen, Anil C. Seth +15

We estimate the mass of the intermediate-mass black hole at the heart of the dwarf elliptical galaxy NGC 404 using Atacama Large Millimeter/submillimeter Array (ALMA) observations…

astro-ph.GA2020★ 19 cited

AGN X-ray irradiation of CO gas in NGC 2110 revealed by and ALMA

Taiki Kawamuro, Takuma Izumi, Kyoko Onishi +3

We report spatial distributions of the Fe-K line at 6.4 keV and the CO( = 2--1) line at 230.538 GHz in NGC 2110, which are respectively revealed by and ALMA at $\ap…

astro-ph.GA2019★ 49 cited

WISDOM project -- V. Resolving molecular gas in Keplerian rotation around the supermassive black hole in NGC 0383

Eve V. North, Timothy A. Davis, Martin Bureau +7

As part of the mm-Wave Interferometric Survey of Dark Object Masses (WISDOM), we present a measurement of the mass of the supermassive black hole (SMBH) in the nearby early-type ga…

astro-ph.GA2019★ 64 cited

The ALMA Discovery of the Rotating Disk and Fast Outflow of Cold Molecular Gas in NGC 1275

H. Nagai, K. Onishi, N. Kawakatu +12

We present ALMA Band 6 observations of the CO(2-1), HCN(3-2), and HCO(3-2) lines in the nearby radio galaxy / brightest cluster galaxy (BCG) of NGC 1275 with the spatial reso…

astro-ph.GA2019★ 46 cited

WISDOM project - IV. A molecular gas dynamical measurement of the supermassive black hole mass in NGC 524

Mark D. Smith, Martin Bureau, Timothy A. Davis +6

We present high angular resolution (0.3" or 37 pc) Atacama Large Millimeter/sub-millimeter Array (ALMA) observations of the CO(2-1) line emission from a central disc in the early-t…

astro-ph.GA2019★ 38 cited

The MBHBM* Project -- I: Measurement of the Central Black Hole Mass in Dwarf Galaxy NGC 3504 Using Molecular Gas Kinematics

Dieu D. Nguyen, Mark den Brok, Anil C. Seth +19

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 M…

astro-ph.GA2017★ 64 cited

WISDOM Project - III: Molecular gas measurement of the supermassive black hole mass in the barred lenticular galaxy NGC4429

Timothy A. Davis, Martin Bureau, Kyoko Onishi +7

As part of the mm-Wave Interferometric Survey of Dark Object Masses (WISDOM) project we present an estimate of the mass of the supermassive black hole (SMBH) in the nearby fast-rot…

astro-ph.GA2017★ 20 cited

On the disappearance of a cold molecular torus around the low-luminosity active galactic nucleus of NGC 1097

T. Izumi, K. Kohno, K. Fathi +15

We used the Atacama Large Millimeter/submillimeter Array (ALMA) to map the CO(3-2) and the underlying continuum emissions around the type 1 low-luminosity active galactic nucleus (…

astro-ph.GA2017★ 66 cited

WISDOM Project - I: Black Hole Mass Measurement Using Molecular Gas Kinematics in NGC 3665

K. Onishi, S. Iguchi, T. A. Davis +4

As a part of the mm-Wave Interferometric Survey of Dark Object Masses (WISDOM) project, we present an estimate of the mass of the supermassive black hole (SMBH) in the nearby fast-…

astro-ph.GA2017★ 83 cited

WISDOM Project - II: Molecular gas measurement of the supermassive black hole mass in NGC4697

Timothy A. Davis, Martin Bureau, Kyoko Onishi +3

As part of the mm-Wave Interferometric Survey of Dark Object Masses (WISDOM) project, we present an estimate of the mass of the supermassive black hole (SMBH) in the nearby fast-ro…

astro-ph.EP2016★ 278 cited

The Exoplanet Mass-Ratio Function from the MOA-II Survey: Discovery of a Break and Likely Peak at a Neptune Mass

D. Suzuki, D. P. Bennett, T. Sumi +26

We report the results of the statistical analysis of planetary signals discovered in MOA-II microlensing survey alert system events from 2007 to 2012. We determine the survey sensi…