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Study of the Carbon Star T Draconis

Tatarnikov, A. M.; Shenavrin, V. I.; Zheltoukhov, S. G. +2 more

We present the results of the infrared photometric observations in the $JHKLM$ bands and infrared spectroscopic observations in the range 1-2.5 $µ$m for the carbon Mira star T Dra performed from 2019 to 2023. An analysis of the photometric observations shows the presence of both pulsational brightness fluctuations with an amplitude falling f…