Open Access

Table A.1

H2 line contribution to JWST filters.

Filter Wavelength (μm) H2 Contribution
F300M 3.0 0.51
F335M 3.35 0.095
F430M 4.3 0.212
F560W 5.6 0.06
F770W 7.7 0.067
F1000W 10.0 0.19
F1130W 11.3 0.00
F1280W 12.8 0.09
F1500W 15.0 0.005
F1800W 18.0 0.087
F2100W 21.0 0.00
F2550W 25.5 0.00

Notes. Average fractional contribution of H2 emission lines to each JWST photometric filter in the external filament located 0–5″ from the illuminated edge of the Horsehead PDR. Line contributions derived from Misselt et al. (2025).

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