6533b85bfe1ef96bd12baa48

RESEARCH PRODUCT

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

S. M. MazzolaR. IariaAngelo Francesco GambinoA. MarinoT. Di SalvoT. BassiA. SannaA. RiggioL. Burderi

subject

High Energy Astrophysical Phenomena (astro-ph.HE)X-rays: binariesstars: individual (MXB 1659-298)stars: neutronaccretionaccretion disksAstrophysics::High Energy Astrophysical PhenomenaAccretion Accretion disks Stars: individual (MXB 1659-298) Stars: neutron X-rays: binariesFOS: Physical sciences[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Astrophysics - High Energy Astrophysical Phenomena

description

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.

yearjournalcountryeditionlanguage
2019-02-11
http://arxiv.org/abs/1906.10960