Friedrich Wyrowski
MPIfR Bonn
Infall studies towards star forming regions
Observation of infall is key to our understanding of the accretion process in star formation. High-resolution spectroscopy allows us to resolve molecular lines originating from the dense molecular envelopes of the forming (proto-) stars to deduce the kinematics of the gas. In this contribution, I'll describe how SOFIA significantly contributed to the quest for and characterisation of infall by providing unique access to molecular lines at THz frequencies that allow red-shifted absorption studies as direct probe of infall. Furthermore, I'll describe complementary ground-based observations of large-scale infall and opportunities for future FIR missions.