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Unveiling Metal Mixing in a Grand-design Spiral: A UV/Optical Multiphase Spatially Resolved Study of M83

  • Authors: Adarsh Ranjan, Bethan L. James, Svea Hernandez, R. Rickards Vaught, Nimisha Kumari, Alessandra Aloisi, Peter Zeidler

Adarsh Ranjan et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure F2.

HST/COS spectra (binned to fit SB 99 models) of M83-POS-1 shown in blue, along with the best-fit (with ± 3σ uncertainty) stellar model shown in red. The best-fit stellar parameters are also shown in the legends. Regions shown in gray are masked out due to contamination from prominent nebular emission, ISM absorption features, instrument-based issues, or generally low S/N.

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