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The intriguing nature of the high-energy gamma ray source XSS J12270-4859
(EDP Sciences, 2010-06)
The nature of the hard X-ray source XSS J12270-4859 is still unclear. It was claimed to be a possible magnetic Cataclysmic Variable of the Intermediate Polar type from its optical spectrum and a possible 860 s X-ray ...
Candidate counterparts to the soft gamma-ray flare in the direction of LS I +61 303
(EDP Sciences, 2009-04)
Context: A short duration burst reminiscent of a soft gamma-ray repeater/anomalous X-ray pulsar behaviour was detected in the direction of LS I +61 303 by the Swift satellite. While the association with this well known ...