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Variable absorption line in XTE J1810-197

Göğüş, Ersin; Güver, Tolga; Vurgun, Eda +1 more

We report the results of a long-term spectral and timing study of the first transient magnetar, XTE J1810-197 which was discovered in 2003, when its X-ray luminosity increased ≈ 100 fold. We fit X-ray spectra of all archival X-ray observations using a two-component blackbody model, where the cool component is most likely originating from the whole…