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The First Empirical Calibration of the Mid-infrared Abundance Diagnostic Ne23 with JWST

  • Authors: Noah S. J. Rogers, Evan D. Skillman, Danielle A. Berg, Karla Z. Arellano-Córdova, Richard W. Pogge, Alessandra Aloisi, Leslie K. Hunt, Anne E. Jaskot, Matilde Mingozzi, Ryan J. Rickards Vaught, Karin M. Sandstrom, O. Grace Telford, Macarena G. del Valle-Espinosa

Noah S. J. Rogers et al 2026 The Astrophysical Journal Letters 1003 .

  • Provider: AAS Journals

Caption: Figure 1.

Ch3 band A data cube of the CHAOS H II region M33+46−380. The spectral map is plotted at the wavelength slice corresponding to the [Ne II]λ12.81 μm line center. In black, we plot the long slit aperture used to acquire the optical spectrum and measure Te and 12+log(O/H). We extract a 1D MIR spectrum (Figure 2) from an aperture matched to the optical observations, a necessary step to empirically calibrate the Ne23 diagnostic.

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