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Paper: Unveiling the Nature of the 321s Orbital Period X–ray Source RXJ0806.3+1527
Volume: 315, Magnetic Cataclysmic Variables (IAU Colloquium 190)
Page: 338
Authors: Israel, G.L.; Stella, L.; Covino, S.; Campana, S.; Marconi, G.; Mauche, C.W.; Mereghetti, S.; Negueruela, I.
Abstract: A nearly simultaneous X-ray/optical (Chandra and VLT) observational campaign of RX J0806.3+1527 has been carried out during 2001. These observations allowed us to phase the X-ray and optical light curves for the first time. We measured a phase-shift of ∼­0.5, in good agreement with the presence of two distinct emission regions and with the X-ray irradiation process predictions. The Chandra data allowed us also to study in details the X-ray spectrum of RX J0806.3+1527, which is consistent with a soft (kT<70 eV) and small (RBB <20 km) black-body component. We discuss the present findings in the light of the models proposed so far to account for the X-ray emission detected from RX J0806.3+1527, and its twin source RX J1914.4+2456.
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