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# Program information file
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PROGRAM_ID           2024B005
PROGRAM_TITLE        Velocity-resolved observations of the HOPS 370 outflow with iSHELL
PROGRAM_INV1         David Neufeld
PROGRAM_INV2         Will Fischer
PROGRAM_INV3         Dan Watson
PROGRAM_INV4         Yao-Lun Yang
PROGRAM_INV5         Tom Megeath
PROGRAM_SCICAT       galactic/interstellar medium
PROGRAM_ABSTRACT_BEG
We will perform velocity-resolved spectroscopy of a jet and shocked knot associated with the Class O/I protostar HOPS 370 [OMC2-FIR4], a source for which NIRSpec and MIRI/MRS observations have previously been acquired with JWST.  We will use the Lp3 and M1 modes of iSHELL to cover the 3.83 -- 4.18 um spectral region and the 4.52 -- 5.25 um spectral region [with gaps].  These observations will target key fine structure of lines of Fe+, four pure rotational lines of H2, the Br alpha H recombination line, and the CO v=1-0 vibrational band, all of which are known from the JWST data to probe the outflow from HOPS 370.  The proposed observations will provide key information about the flow velocities that is missing from the low-spectral-resolution JWST data.  We will thereby leverage existing JWST observations to obtain unique information about the physics of the outflow in this source.
PROGRAM_ABSTRACT_END