Upper limits on excited CH2+ column density from JWST data in d203-506 are several times lower than for CH+ and CH3+, lie near or below PDR model predictions assuming similar excitation, and are accompanied by tabulated transitions for community use.
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Searching for the elusive CH2+ with the James Webb Space Telescope. Another carbocation to constrain astrochemical networks
Upper limits on excited CH2+ column density from JWST data in d203-506 are several times lower than for CH+ and CH3+, lie near or below PDR model predictions assuming similar excitation, and are accompanied by tabulated transitions for community use.