Speaker
Description
Wolf-359 is an M6.5 dwarf, famous for being an active flare star located in our solar neighborhood at a distance of approximately 2.42 pc. Due to its proximity, it has been a primary target for stellar activity surveys including the EDEN project (Lin et al., 2021). Their combined observations from Kepler/K2 and EDEN showed that the flare frequency is a function of the flare energy. Flares reaching energies of $10^{31}$ erg can occur once a day, while superflares reaching $>10^{33}$ erg can be generated $10$ times every year. Characterization of these events has been done using the Triple Range Imager and POLarimeter (TRIPOL), which performs simultaneous $g, r,$ and $i$ band photometry and polarimetry (400–830 nm) (Sato et al., 2019). Moreover, previous studies on TRIPOL established an average flare temperature of $5500\pm1600$K where a gap, however, existed in the temperature-energy relationship for flare energies between $10^{30}$ and $10^{32}$ erg (Lin et al., 2025).
Most recently, a follow-up monitoring campaign of Wolf-359 was conducted using TRIPOL on Lulin One-meter Telecscope (LOT), Taiwan, on February 25 and March 5-8, 2026. Aperture photometry is performed to obtain the light curves of Wolf-359 and show its activity. Another two reference stars were utilized to ensure photometric stability and validate any significant target measurements. These current observations along with future monitoring will eventually be essential in resolving the mentioned gap in the derived temperature-energy relationship (Lin et al., 2025).
| Participate the oral/poster presentation award competition | Yes |
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