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11 papers · 2 filters
ALMA reveals Strong [CII] emission in a galaxy embedded in a giant Lyman-alpha blob at z=3.1
Hideki Umehata, Yuichi Matsuda, Yoichi Tamura +21
We report the result from observations conducted with the Atacama Large Millimeter/submillimeter Array (ALMA) to detect [CII] 158 um fine structure line emission from galaxies embe…
A statistical study of giant molecular clouds traced by CO, CO, CS, and CHOH in the disk of NGC 1068 based on ALMA observations
Tomoka Tosaki, Kotaro Kohno, Nanase Harada +7
We present (98 pc) resolution ALMA observations of CO(=1-0), CO(=1-0), CS(=2-1) and CHOH(=-) molecular lines in the central (…
ALMA Deep Field in SSA22: Source Catalog and Number Counts
Hideki Umehata, Yoichi Tamura, Kotaro Kohno +15
We present results from a deep 2'x3' (comoving scale of 3.7 Mpc x 5.5 Mpc at z=3) survey at 1.1 mm taken with the Atacama Large Millimeter/submillimeter Array (ALMA) in the SSA22 f…
SXDF-ALMA 2-arcmin^2 Deep Survey: Stacking of Rest-Frame Near-Infrared Selected Objects
Wei-Hao Wang, Kotaro Kohno, Bunyo Hatsukade +24
We present stacking analyses on our ALMA deep 1.1 mm imaging in the SXDF using 1.6 μm and 3.6 μm selected galaxies in the CANDELS WFC3 catalog. We detect a stacked flux of ~0.03-0.…
Clumpy and Extended Starbursts in the Brightest Unlensed Submillimeter Galaxies
Daisuke Iono, Min S. Yun, Itziar Aretxaga +16
The central structure in three of the brightest unlensed z=3-4 submillimeter galaxies are investigated through 0.015" - 0.05" (120 -- 360~pc) 860 micron continuum images obtained u…
Bulge-forming galaxies with an extended rotating disk at z~2
Ken-ichi Tadaki, Reinhard Genzel, Tadayuki Kodama +24
We present 0".2-resolution Atacama Large Millimeter/submillimeter Array observations at 870 um for 25 Halpha-seleced star-forming galaxies (SFGs) around the main-sequence at z=2.2-…
Detection of an oxygen emission line from a high redshift galaxy in the reionization epoch
Akio K. Inoue, Yoichi Tamura, Hiroshi Matsuo +14
The physical properties and elemental abundances of the interstellar medium in galaxies during cosmic reionization are important for understanding the role of galaxies in this proc…
Do Circumnuclear Dense Gas Disks Drive Mass Accretion onto Supermassive Black Holes?
Takuma Izumi, Nozomu Kawakatu, Kotaro Kohno
We present a positive correlation between the mass of dense molecular gas () of pc scale circumnuclear disks (CNDs) and the black hole mass accretion rate…
ALMA observations of the submillimetre hydrogen recombination line from the type 2 active nucleus of NGC 1068
Takuma Izumi, Kouichiro Nakanishi, Masatoshi Imanishi +1
Hydrogen recombination lines at the submillimetre band (submm-RLs) can serve as probes of ionized gas without dust extinction. One therefore expects to probe the broad line region…
SXDF-UDS-CANDELS-ALMA 1.5 arcmin deep survey
K. Kohno, Y. Yamaguchi, Y. Tamura +26
We have conducted 1.1 mm ALMA observations of a contiguous or 1.5 arcmin window in the SXDF-UDS-CANDELS. We achieved a 5 sensitivity of 0.28 mJy, providi…
High resolution ALMA observations of dense molecular medium in the central regions of active galaxies
Kotaro Kohno, Ryo Ando, Akio Taniguchi +2
In the central regions of active galaxies, dense molecular medium are exposed to various types of radiation and energy injections, such as UV, X-ray, cosmic ray, and shock dissipat…