First velocity-resolved [O I] 63/145 um maps of the Orion BN/KL outflow show broad components from dense warm postshock gas, with line ratios matching 30-40 km/s dissociative J-shocks illuminated by external UV, yielding [O I] luminosity 86.5 L_sun and mass-loss rate ~9e-3 M_sun/yr.
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C4H/H13CO+ and c-C3H2/H13CO+ abundance ratios decrease with molecular core evolution, indicating consumption of small unsaturated hydrocarbons into complex organic molecules.
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Velocity-resolved [O I] 63,145 um, [C II] 158 um, and OH mapping along the Orion BN/KL explosive outflow and irradiated shocks
First velocity-resolved [O I] 63/145 um maps of the Orion BN/KL outflow show broad components from dense warm postshock gas, with line ratios matching 30-40 km/s dissociative J-shocks illuminated by external UV, yielding [O I] luminosity 86.5 L_sun and mass-loss rate ~9e-3 M_sun/yr.
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The evolution of C4H and c-C3H2 in molecular cores
C4H/H13CO+ and c-C3H2/H13CO+ abundance ratios decrease with molecular core evolution, indicating consumption of small unsaturated hydrocarbons into complex organic molecules.