Three X-ray Flares Near Primary Eclipse of the RS CVn Binary XY UMa

Hang Gong, Rachel Osten, Thomas Maccarone +3

We report on an archival X-ray observation of the eclipsing RS CVn binary XY UMa (${\mathrm{P}}_{\mathrm{orb}}\approx$ 0.48d). In two $\text{Chandra}$ ACIS observations spanning 200 ks and almost…