We present preliminary results of a study on three bright accreting low-mass X-ray binaries hosting a neutron star, based on XMM-Newton observations. These sources (GX 340+0, GX 349+2 and SAX J1808.4-3658) show a broad Fe K alpha iron line in their spectra. This feature can be well described by relativistic line profile in each case; the good spectral resolution of the EPIC/PN and the high statistics spectra allow to put very good constraints on the disk geometry and ionization stage of the reflecting matter.
D'Aì, A., di Salvo, T., Iaria, R., Papitto, A., Matt, G., Robba, N. (2009). Relativistically Smeared Iron Lines in the Spectra of Bright NS LMXB. In International Simbol-X Symposium. AIP Conference Proceedings, 2009, Vol. 1126, pp. 335-337 (pp. 335-337). American Institute of Physics Conference Series [10.1063/1.3149448].
Relativistically Smeared Iron Lines in the Spectra of Bright NS LMXB
D'AI', Antonino;DI SALVO, Tiziana;IARIA, Rosario;ROBBA, Natale
2009-01-01
Abstract
We present preliminary results of a study on three bright accreting low-mass X-ray binaries hosting a neutron star, based on XMM-Newton observations. These sources (GX 340+0, GX 349+2 and SAX J1808.4-3658) show a broad Fe K alpha iron line in their spectra. This feature can be well described by relativistic line profile in each case; the good spectral resolution of the EPIC/PN and the high statistics spectra allow to put very good constraints on the disk geometry and ionization stage of the reflecting matter.
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