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[ITAL]XMM-Newton[/ITAL] Observations of the Neutron Star X-Ray Transient KS 1731โ260 in Quiescence
We report on XMM-Newton observations performed on 2001 September 13-14 of the neutron star X-ray transient KS 1731-260 in quiescence. The source was detected at an unabsorbed 0.5-10 keV flux of only (4-8) ร 10-14 ergs cm-2 s-1, depending on the model used to fit the data, which for a โฆ