On the 1D-REMPI spectrum for C + there was a large peak observed that was not observed on the other spectra but it reflects the Rydberg state 7d (δ = 1.23).
Á C + rófinu var stór toppur sem sást ekki á hinum rófunum en hann endurspeglar Rydberg ástandið 7d (δ = 1.23).