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Implication of Formation Mechanisms of HC5N in TMC-1 as Studied by 13C Isotopic Fractionation
Kotomi Taniguchi, Hiroyuki Ozeki, Masao Saito +5
We observed the J = 9-8 and 16-15 rotational transitions of the normal species and five 13C isotopologues of HC5N to study its formation mechanisms toward the cyanopolyyne peak in…
Z45: A New 45-GHz Band Dual-Polarization HEMT Receiver for the NRO 45-m Radio Telescope
Fumitaka Nakamura, Hideo Ogawa, Yoshinori Yonekura +20
We developed a dual-linear-polarization HEMT (High Electron Mobility Transistor) amplifier receiver system of the 45-GHz band (hereafter Z45), and installed it in the Nobeyama 45-m…
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 $\…
Abundance Anomaly of the C Isotopic Species of c-CH in the Low-Mass Star Formation Region L1527
Kento Yoshida, Nami Sakai, Tomoya Tokudome +9
The rotational spectral lines of c-CH and two kinds of the C isotopic species, c-CCCH ( symmetry) and c-CCCH ( symmetry) have been…