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JWST and Gemini Observations of the Active Centaur 450P/LONEOS: Nucleus and Coma Characterizations

  • Authors: Charles A. Schambeau, Michael S. P. Kelley, Maria Womack, Eva Lilly, Theodore Kareta, Sara Faggi, Olga Harrington Pinto, Marco Micheli, Dominique Bockelée-Morvan, Yanga R. Fernández, Adam McKay, Noemi Pinilla-Alonso, Javier Licandro, Aren Beck, Geronimo L. Villanueva, James Bauer, Lori Feaga, Michael A. DiSanti, Kacper Wierzchos

Charles A. Schambeau et al 2026 The Planetary Science Journal 7 .

  • Provider: AAS Journals

Caption: Figure 7.

A close-up of the continuum-subtracted JWST spectrum of 450P centered on the CO2 emission band (black line) with the best-fit model spectrum of the CO2ν3 fluorescence emission band overplotted in a red dashed line using the Planetary Spectrum Generator. The model is consistent with QCO2 = (6.99 ± 0.07) × 1024 molecules s−1 and Trot = 60 ± 1 K. The associated 1σ uncertainties for the spectrum are shown with the gray shaded regions.

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