Energy Partition in Four Confined Circular-Ribbon Flares

In this study, we investigate the energy partition of four confined circular-ribbon flares (CRFs) that occurred close to solar disk center. The are observed simultaneously by Solar Dynamics Observatory (SDO), Geostationary Operational Environmental Satellites (GOES), and Ramaty Hight Energy Spectroscopic Imager (RHESSI). We calculate different components, including radiative outputs in ranges 1 – 8 Å, 70 370 total loss, peak thermal derived from GOES RHESSI, nonthermal flare-accelerated electrons, magnetic free before flares. It is found values components increase systematically with flare class, indicating more involved larger energies ( $E_{mag}$ ) than $E_{nth}$ outputs, which consistent nature ratio $\frac{E_{nth}}{E_{mag}}$ flares, being 0.70 0.76, considerably higher eruptive Hence, may serve as an important factor for discriminating sufficient provide heating requirements loss. Our findings impose constraints on theoretical models CRFs have potential implications space weather forecast.