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- W4287203764 abstract "In the interstellar medium and planetary atmosphere, the hydrogen cyanide (HCN) molecule plays an important role in the synthesis of many major prebiotic molecules (e.g., CH$_{2}$NH, CH$_{3}$NH$_{2}$, NH$_{2}$CH$_{2}$CN, etc.) via the gas-phase and grain surface chemical reactions. For several years, many observations have failed to detect the emission lines of HCN from the atmosphere of Saturn using ground and space-based radio telescopes. We presented the first successful detection of the rotational emission line of HCN from the atmosphere of Saturn using the Atacama Large Millimeter/submillimeter Array (ALMA) band 7. The emission line of HCN was detected from the eastern limb and western limb of Saturn at a frequency of 354.505 GHz with $geq3sigma$ statistical significance. The estimated column density of HCN in the western limb was $N$(HCN) = (7.02$pm$0.3)$times$10$^{12}$ cm$^{-2}$ with excitation temperature ($T_{ex}$) = 195.72$pm$12.3 K. The column density of HCN in the eastern limb was $N$(HCN) = (3.50$pm$0.9)$times$10$^{12}$ cm$^{-2}$ with excitation temperature ($T_{ex}$) = 198.23$pm$16.8 K. We also discussed the possible formation mechanism of HCN in the atmosphere of Saturn." @default.
- W4287203764 created "2022-07-25" @default.
- W4287203764 creator A5040013019 @default.
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- W4287203764 date "2021-04-21" @default.
- W4287203764 modified "2023-10-14" @default.
- W4287203764 title "Discovery of hydrogen cyanide (HCN) in the atmosphere of Saturn" @default.
- W4287203764 doi "https://doi.org/10.48550/arxiv.2104.10474" @default.
- W4287203764 hasPublicationYear "2021" @default.
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