AstroSat Investigation of X-ray Flares on Two Active K-M Systems: CC Eri and AB Dor

We present an X-ray and UV investigation of five X-ray flares detected on two active systems, CC Eri and AB Dor, using the AstroSat observatory. The peak X-ray luminosities of the flares in the 0.3–7.0 keV band are found to be within 1031‑33 erg s‑1. Preliminary spectral analysis indicates the presence of three and four-temperature corona for CC Eri and AB Dor, respectively, where the highest temperature is found to vary with flare. The flare temperatures peaked at 51–59 MK for CC Eri and 29–44 MK for AB Dor. The peak emission measures of the flaring loops are estimated to be ∼1054 for CC Eri and ∼1055 cm‑3 for AB Dor. Global metallic abundances were also found to increase during flares.