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Chapter and Conference Paper
Exploration of Southern Sky with Atacama Submillimeter Telescope Experiment (ASTE)
The Atacama Submillimeter Telescope Experiment (ASTE) is a joint project between Japan and Chile to install and operate a 10 m high precision telescope for exploration of the Southern sky at submillimeter wave...
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Article
Aperture synthesis observations of HCN J=1-0 emission from Y canum venaticorum
We have made high resolution observations of HCN (1-0) emission from the carbon star Y Canum Venaticorum using the Nobeyama Millimeter Array. We find that the emission region is not well resolved by the synthe...
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Chapter and Conference Paper
Aperture Synthesis Observations of HCN J=1-0 Emission from Y Canum Venaticorum
We have made high resolution observations of HCN (1–0) emission from the carbon star Y Canum Venaticorum using the Nobeyama Millimeter Array. We find that the emission region is not well resolved by the synthe...
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Article
Molecular and low excitation emission in high mass post-main-sequence nebulae
We have undertaken map** and spectroscopy of a broad range of type I post-Main-Sequence nebulae in COJ=1→0,J=2→1, andJ=3→2, using the 12 m antenna at Kitt Peak, and the 45 m facility of the Nobeyama Radio Obser...
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Chapter and Conference Paper
Molecular Clouds in the Central 100-pc of the Galactic Center
We have observed CS(J=1–0/2–1) lines in a 60’×30’(1×b) area of the Galactic center region. There are two large-scale features with elliptical shape in the position-velocity maps, which suggest shell-like struc...
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Chapter and Conference Paper
Distribution of the H2O Masers in the Sagittarius B2 Core
The distribution of H2O masers in the Sgr B2 core was observed with a 2.5′×2.5′ wide field and with 540 km s-1 total velocity coverage by the Nobeyama Millimeter Array. Thirty-nine resolved maser spots were detec...
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Chapter and Conference Paper
A CO search for molecular gas in high mass post-main-sequence nebulae
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Chapter and Conference Paper
Discovery of a reflection dust envelope around IRC+10216
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Chapter and Conference Paper
A sensitive line search in circumstellar envelopes
A molecular line search in the range between 85 and 89 GHz has been performed in the circumstellar envelopes of 11 evolved stars. Emissions of 29SiO J=2-1,28SiO J=2-1, HCN J=1-0, H13CN J=1-0, HC5 N J=33-32, HCO+ ...
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Chapter and Conference Paper
SiO isotope emissions from late-type stars
The J=2-1, v=0 emissions of 28Si0,29Si0, and 30Si0 from three late-type stars were simultaneously observed with the Nobeyama 45-m telescope in January 1987. The relative intensities of (29Si0 ) / (30Si0 ) were me...
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Chapter and Conference Paper
Detection of water maser emission from a carbon star V778 CYGNI