Broadband spectral analysis of MXB 1659-298 in its soft and hard state

S. M. Mazzola; R. Iaria; A. F. Gambino; A. Marino; T. Di Salvo; T. Bassi; A. Sanna; A. Riggio; L. Burderi

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arXiv · 1906.10960

Broadband spectral analysis of MXB 1659-298 in its soft and hard state

S. M. Mazzola·R. Iaria·A. F. Gambino·A. Marino·T. Di Salvo·T. Bassi·A. Sanna·A. Riggio·L. Burderi

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Abstract

The X-ray transient eclipsing source MXB 1659-298 went in outburst in 1999 and 2015, respectively, during which it was observed by XMM-Newton, NuSTAR and Swift. Using these observations we studied the broadband spectrum of the source to constrain the continuum components and to verify the presence of a reflection component. We analysed the soft and hard state of the source, finding that the soft state can be modelled with a thermal component associated with the inner accretion disc plus a Comptonised component. A smeared reflection component and the presence of an ionised absorber are also requested in the best-fit model. On the other hand, the direct continuum emission in the hard state can be described by a Comptonised component with a temperature larger than 150 keV. Also in this case a reflection component and a ionised absorber are observed.

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S. M. Mazzola, R. Iaria, A. F. Gambino, A. Marino, T. Di Salvo, T. Bassi, A. Sanna, A. Riggio, L. Burderi. 2019-06-26. Broadband spectral analysis of MXB 1659-298 in its soft and hard state. https://arxiv.org/abs/1906.10960

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