Formation of the methyl cation by photochemistry in a protoplanetary disk
Forty years ago, it was proposed that gas-phase organic chemistry in the interstellar medium
can be initiated by the methyl cation CH3+ (refs.,–), but so far it has not been observed
outside the Solar System,. Alternative routes involving processes on grain surfaces have
been invoked,. Here we report James Webb Space Telescope observations of CH3+ in a
protoplanetary disk in the Orion star-forming region. We find that gas-phase organic
chemistry is activated by ultraviolet irradiation.
can be initiated by the methyl cation CH3+ (refs.,–), but so far it has not been observed
outside the Solar System,. Alternative routes involving processes on grain surfaces have
been invoked,. Here we report James Webb Space Telescope observations of CH3+ in a
protoplanetary disk in the Orion star-forming region. We find that gas-phase organic
chemistry is activated by ultraviolet irradiation.
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