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High-resolution Mid-infrared Spectroscopy of SVS13-A with EXES/SOFIA: The Surprisingly High CH₃OH/H₂O Ratio in the Planet-forming Zone of a Solar Mass Protostar

Authors: Curtis DeWitt, Marta De Simone, Eleonora Bianchi, Cecilia Ceccarelli, Claudio Codella, Sarah Nickerson, Keeyoon Sung, Albert Rimola, Vittorio Bariosco, Piero Uliengo, Naseem Rangwala

Curtis DeWitt et al 2026 The Astrophysical Journal Letters 1001 .

Provider: AAS Journals

Caption: Figure 1.

Observed H₂O and CH₃OH line profiles with the best-fitting LTE slab models overplotted in red. The dashed blue line indicates the 1σ flux uncertainty. In the H₂O profiles, the nearby atmospheric water absorption causes the flux uncertainty to rise quickly toward lower velocities. The spectra has been binned by 3 pixels.

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