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Multiple Accretion Outburst Processes of the Massive Protostar M17 MIR

Zhiwei Chen, Sun Wei, Rolf Chini, Martin Haas, Jiang Zhibo, Chen Xuepeng, Chen Zhiwei
2022-04-20 ChinaXiv: chinaxiv-202204.00141

We report the discovery of a massive protostar M17~MIR embedded in a hot molecular core in M17. The multiwavelength data obtained during 1993--2019 show significant mid-IR (MIR) variations, which can be split into three stages: the decreasing phase during 1993.03--mid-2004, the quiescent phase from …