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		题名	作者	年代	出处	被引量
	1	Three X-ray flares near primary eclipse of the RS CVn binary XY UMa显示文摘We report on an archival X-ray observation of the eclipsing RS CVn binary XY UMa(P_(orb) ≈0.48 d). In two Chandra ACIS observations spanning 200 ks and almost five orbital periods, three flares occurred. We find no evidence for eclipses in the X-ray flux. The flares took place around times of primary eclipse, with one flare occurring shortly(< 0.125 P_(orb)) after a primary eclipse, and the other two happening shortly(< 0.05 P_(orb)) before a primary eclipse. Two flares occurred within roughly one orbital period(?φ≈1.024 P_(orb)) of each other. We analyze the light curve and spectra of the system, and investigate coronal length scales during both quiescence and flares, as well as the timing of the flares. We explore the possibility that the flares are orbit-induced by introducing a small orbital eccentricity, which is quite challenging for this close binary.	Hang Gong Rachel Osten Thomas Maccarone Fabio Reale Ji-Feng Liu Paul A. Heckert	2016	Research in Astronomy and Astrophysics2016，16，8：	0

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