127 citations · 1.3k across the 71 of their papers we have counts for
10 papers · 1 filter
Circumnuclear Multi-phase Gas in Circinus Galaxy I: Non-LTE calculations of CO lines
Keiichi Wada, Ryosuke Fukushige, Takuma Izumi +1
In this study, we investigate the line emissions from cold molecular gas based on our previous "radiation-driven fountain model" (Wada 2016), which reliably explains the spectral e…
Very compact millimeter sizes for composite star-forming/AGN submillimeter galaxies
Soh Ikarashi, Karina Caputi, Kouji Ohta +20
We report the study of far-IR sizes of submillimeter galaxies (SMGs) in relation to their dust-obscured star formation rate (SFR) and active galactic nuclei (AGN) presence, determi…
Diverse nuclear star-forming activities in the heart of NGC 253 resolved with ten-pc scale ALMA images
Ryo Ando, Kouichiro Nakanishi, Kotaro Kohno +13
We present an 8 pc x 5 pc resolution view of the central ~ 200 pc region of the nearby starburst galaxy NGC 253, based on ALMA Band 7 (λ ~ 0.85 mm or ν ~ 350 GHz) observations cove…
ALMA Multiple-Transition Molecular Line Observations of the Ultraluminous Infrared Galaxy IRAS 20551-4250: Different HCN, HCO+, HNC Excitation and Implications for Infrared Radiative Pumping
Masatoshi Imanishi, Kouichiro Nakanishi, Takuma Izumi
We present our ALMA multi-transition molecular line observational results for the ultraluminous infrared galaxy, IRAS 20551-4250, which is known to contain a luminous buried AGN an…
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 (…
Blind millimeter line emitter search using ALMA data toward gravitational lensing clusters
Yuki Yamaguchi, Kotaro Kohno, Yoichi Tamura +10
We present the results of a blind millimeter line emitter search using ALMA Band 6 data with a single frequency tuning toward four gravitational lensing clusters (RXJ1347.5-1145, A…