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A new off-point-less observing method for millimeter and submillimeter spectroscopy with a frequency-modulating local oscillator (FMLO)
Akio Taniguchi, Yoichi Tamura, Kotaro Kohno +6
We propose a new observing method for single-dish millimeter and submillimeter spectroscopy using a heterodyne receiver equipped with a frequency-modulating local oscillator (FMLO)…
Gas filaments of the cosmic web located around active galaxies in a proto-cluster
H. Umehata, M. Fumagalli, I. Smail +15
Cosmological simulations predict the Universe contains a network of intergalactic gas filaments, within which galaxies form and evolve. However, the faintness of any emission from…
Large Population of ALMA Galaxies at z>6 with Very High [OIII]88um to [CII]158um Flux Ratios: Evidence of Extremely High Ionization Parameter or PDR Deficit?
Yuichi Harikane, Masami Ouchi, Akio K. Inoue +20
We present our new ALMA observations targeting [OIII]88um, [CII]158um, [NII]122um, and dust continuum emission for three Lyman break galaxies at z=6.0293-6.2037 identified in the S…
First [NII]122m line detection in a QSO-SMG pair BRI 1202-0725 at
Minju M. Lee, Tohru Nagao, Carlos De Breuck +14
We report the first detection obtained with ALMA of the [N II] 122m line emission from a galaxy group BRI 1202-0725 at consisting of a QSO and a submilimeter-bright gal…
A Radio-to-millimeter Census of Star-forming Galaxies in Protocluster 4C~23.56 at z = 2.5 : Global and local gas kinematics
Minju M. Lee, Ichi Tanaka, Ryohei Kawabe +12
We present a study of the gas kinematics of star-forming galaxies associated with protocluster 4C 23.56 at using resolution CO (4-3) data taken with ALMA. Eleven H…
ADF22: Blind detections of [CII] line emitters shown to be spurious
Natsuki H. Hayatsu, Rob J. Ivison, Paola Andreani +12
We report Atacama Large Millimetre/submillimeter Array (ALMA) Cycle-5 follow-up observations of two candidate [CII] emitters at z ~ 6 in the ALMA deep field in SSA22 (ADF22). The c…