The CH₃OH/CH₃CN ratio in the S68N outflow is constant at ~100-200 and matches gas-phase astrochemical models only when cosmic-ray ionization rates are raised to ~10^{-14} s^{-1}.
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ALMA observations detect CH3CN, C2H5CN, C2H3CN, NH2CN, NH2CHO and vibrationally excited HC3N in S255IR NIRS3; LTE-derived abundances match warm-up chemical model predictions within factors of ~0.7-1.3.
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Probing outflow physics through CH$_3$CN and CH$_3$OH chemistry
The CH₃OH/CH₃CN ratio in the S68N outflow is constant at ~100-200 and matches gas-phase astrochemical models only when cosmic-ray ionization rates are raised to ~10^{-14} s^{-1}.
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Digging into the Massive Protostar S255IR NIRS3: A Study of Nitrogen-Bearing Molecules and Their Prebiotic Chemistry
ALMA observations detect CH3CN, C2H5CN, C2H3CN, NH2CN, NH2CHO and vibrationally excited HC3N in S255IR NIRS3; LTE-derived abundances match warm-up chemical model predictions within factors of ~0.7-1.3.