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FIRST DETECTION OF [C I] <sup>3</sup> P <sub>1</sub> โ€“ <sup>3</sup> P <sub>0</sub> EMISSION FROM A PROTOPLANETARY DISK

FIRST DETECTION OF [C I] <sup>3</sup> P <sub>1</sub> โ€“ <sup>3</sup> P <sub>0</sub> EMISSION FROM A PROTOPLANETARY DISK

We performed single point [C I] $^3$P$_1$-$^3$P$_0$ and CO J=4-3 observations toward three T Tauri stars, DM Tau, LkCa 15, and TW Hya, using the Atacama Large Millimeter/submillimeter Array (ALMA) Band 8 qualification model receiver installed on the Atacama Submillimeter Telescope Experiment (ASTE). Two protostars in the Taurus L1551 region, โ€ฆ