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Fig. 4

image

Top: extinction by the extra absorber with different extinction curves. ISM-like models have Agray = 0 and RV = 3.1. The scattering model assumes ISM-like extinction with AV = 10 mag, a scattering efficiency of 13% in V, and no additional extinction along the scattering path. Photometric bands are shown at their effective wavelengths. Bottom: NIR color–color diagram.

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