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| Paper: |
Spectral Line Survey Toward Quiescent Giant Molecular Clouds
in the Large Magellanic Cloud |
| Volume: |
499, Revolution in Astronomy with ALMA: The Third Year |
| Page: |
165 |
| Authors: |
Nishimura, Y.; Shimonishi, T.; Watanabe, Y.; Sakai, N.; Aikawa, Y.; Kawamura, A.; Yamamoto, S. |
| Abstract: |
Spectral line survey observations in the 3 mm band have been conducted
toward 7 molecular clouds in the Large Magellanic Cloud (LMC)
with the Mopra 22 m telescope.
Spectral lines of the fundamental species
CCH, HCN, HCO+, HNC, CS, SO, and c-C3H2 are detected.
Although the 7 sources are different in star-formation activities,
chemical compositions averaged over the 10 pc beam
are similar to one another.
We find that N-bearing species are deficient and CCH is relatively abundant
in comparison with metal-rich environments.
In spite of overall similarity of the chemical compositions,
we also find a trend that the CS/HCO+ and SO/HCO+ ratios
are higher for starless clouds. |
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