Broadband spectral analysis of MXB 1659-298 in its soft and hard state
- Autori: Mazzola S.M.; Iaria R.; Gambino A.F.; Marino A.; Di Salvo T.; Bassi T.; Sanna A.; Riggio A.; Burderi L.
- Anno di pubblicazione: 2019
- Tipologia: Contributo in atti di convegno pubblicato in rivista
- OA Link: http://hdl.handle.net/10447/430503
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.