Probing the hidden atomic gas in Class I jets with SOFIA

Abstract

We present SOFIA/FIFI-LS observations of five prototypical, low-mass Class I outflows (HH111, SVS13, HH26, HH34, HH30) in the far-infrared [OI]63mum and [OI]145mum transitions. The obtained spectroscopic [OI]63mum and [OI]145mum maps enable us to study the spatial extent of warm, low-excitation atomic gas within outflows driven by Class I protostars. These [OI] maps may potentially allow us to measure the mass-loss rates (${\dot{M}}_{\text{jet}}$) of this warm component of the atomic jet.

arXiv comment24 pages, 41 figures, accepted for publication in A&A

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