Extended Data Fig. 6: NIRSpec spectrum of d203-506. The spectrum is shown in gray, the shaded regions is the ±3 sigma error interval of the data.
From: Formation of the methyl cation by photochemistry in a protoplanetary disk
This includes the error provided by the JWST pipeline, and error ν3 band of CH3+ in the NIRSpec spectrum of d203-506. Model of the OH emission (blue), H2 emission (orange), CH3+ emission (green), and sum of these three (red). Beyond 3.22 μm, emission due to the wings of the Aromatic Infrared Band at 3.3 μm is seen, affecting the baseline of the NIRSpec spectrum. The OH spectrum is computed with an LTE model at a temperature of 800 K. A detailed model of the OH emission will be presented in a forthcoming paper (Zannese et al. in prep). The H2 lines are fitted individually. The CH3+ model used here was computed using the constants for v = 0 and v3 = 1 from Extended Data Table 3, at 400 K.
