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Fig. 5.
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SMARTS optical spectrum of RT Cru obtained on 2019 March 17 (black line) and the UVOT spectra obtained on 2019 January 15 (green line) and 2020 August 12 (gray line), corrected for the interstellar extinction using E(B − V) = 0.53. The blue line is a template spectrum of an M6III giant from Zhong et al. (2015).
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