Saxton, R.; Read, A M; Komossa, S; Rodriguez-Pascual, P M; Miniutti, G; Dobbie, Paul; Esquej, P; Colless, Matthew; Bannister, Keith
Aims. New high variability extragalactic sources may be identified by comparing the flux of sources seen in the XMM-Newton Slew Survey with detections and upper limits from the ROSAT All Sky Survey.Methods. A detected flaring extragalactic source was monitored with Swift and XMM-Newton to track its temporal and spectral evolution. Optical and radio observations were made to help classify the galaxy, investigate the reaction of circumnuclear material to the X-ray flare, and check for the...[Show more]
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