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Fig. 5.
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Optical spectra of IRAS 23226-3843 for the years 1997 until 2024. The decreasing spectra from 1997 until 2017 are shown in cyan. The spectra taken during the outburst in 2019 are shown in black. The latest spectra are shown in red (2020), blue (2023), and green (2024).
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