Profiling filaments: comparing near-infrared extinction and submillimetre data in TMC-1

Context. Interstellar filaments are an important part of the star formation process. In order to understand the structure and formation of filaments, the filament cross-section profiles are often fitted with the so-called Plummer profile function. Currently this profiling is often approached with submillimetre studies, especially with Herschel. If these data are not available, it would be more convenient if filament properties could be studied using groundbased near-infrared (NIR) observations.