Roy A. Tucker, Eric R. Craine, Brian L. Craine, Andy S. Kulessa, Christopher J. Corbally, and Adam L. Kraus: "MG1-688432: A Peculiar Variable System." The Astrophysical Journal, 16 August 2021, https://iopscience.iop.org/article/10.3847/1538-4365/ac07af
The short-period variable star MG1-688432 has been discovered to exhibit occasional extremely high energy optical outbursts as high as 1038 erg. Outbursts are typically several hours in duration. These events are often highly structured, resembling sequential associated releases of energy.