activity
20132026
most citedSubaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). V. Quasar Luminosity Function and Contribution to Cosmic Reionization at z = 6

224 citations · 4.1k across the 113 of their papers we have counts for

collaborators
Showing 2015Show all

6 papers · 1 filter

astro-ph.GA2015★ 75 cited

Submillimeter-HCN Diagram for an Energy Diagnostics in the Centers of Galaxies

Takuma Izumi, Kotaro Kohno, Susanne Aalto +16

Compiling data from literature and the ALMA archive, we show enhanced HCN(4-3)/HCO(4-3) and/or HCN(4-3)/CS(7-6) integrated intensity ratios in circumnuclear molecular gas aroun…

astro-ph.GA2015★ 132 cited

ALMA Deep Field in SSA22: A concentration of dusty starbursts in a z=3.09 protocluster core

H. Umehata, Y. Tamura, K. Kohno +20

We report the results of mapping at 1.1~mm with the Atacama Large Millimeter/submillimeter Array (ALMA) toward the central region of the SS…

astro-ph.GA2015★ 12 cited

New Detections of Galactic Molecular Absorption Systems toward ALMA Calibrator Sources

Ryo Ando, Kotaro Kohno, Yoichi Tamura +3

We report on Atacama Large Millimeter/submillimeter Array (ALMA) detections of molecular absorption lines in Bands 3, 6 and 7 toward four radio-loud quasars, which were observed as…

astro-ph.GA2015★ 50 cited

ALMA Observations of the Submillimeter Dense Molecular Gas Tracers in the Luminous Type-1 Active Nucleus of NGC 7469

Takuma Izumi, Kotaro Kohno, Susanne Aalto +30

We present ALMA Cycle 1 observations of the central kpc region of the luminous type-1 Seyfert galaxy NGC 7469 with unprecedented high resolution (0.5 0.4 = 165 pc $\…

astro-ph.GA2015★ 45 cited

SXDF-ALMA 1.5 arcmin^2 deep survey. A compact dusty star-forming galaxy at z=2.5

Ken-ichi Tadaki, Kotaro Kohno, Tadayuki Kodama +23

We present first results from the SXDF-ALMA 1.5 arcmin^2 deep survey at 1.1 mm using Atacama Large Millimeter Array (ALMA). The map reaches a 1sigma depth of 55 uJy/beam and covers…

astro-ph.GA2015

Local instability signatures in ALMA observations of dense gas in NGC7469

Kambiz Fathi, Takuma Izumi, Alessandro B. Romeo +11

We present an unprecedented measurement of the disc stability and local instability scales in the luminous infrared Seyfert 1 host, NGC7469, based on ALMA observations of dense gas…