Probing the hidden atomic gas in Class I jets
Abstract
We request FIFI-LS spectroscopic maps of three prototypical collimated bipolar outflows driven by Class I protostars in the 63mu and 145mu transitions of [OI]. These maps will enable us to study the extent of warm low excitation atomic gas in these flows, to derive the mass flux rate in the atomic jet, measure the ionisation fraction of the gas to get more insight into its excitation mechanism, and measure the accretion/ejection ratio of matter in Class I sources. In a feasibility study we have detected the [OI] 63mu line in two Class I sources. The proposed observations will help to bridge the existing gap of knowledge between Class 0 and Class II sources that remains after HERSCHEL by creating a small but meaningful sample, and will thus allow us evolutionary studies of the derived flow characteristics.
- Publication:
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SOFIA Proposal
- Pub Date:
- 2016
- Bibcode:
- 2016sofi.prop..200E
- Keywords:
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- SOFIA 05_0200