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• W3106330882 endingPage "A36" @default.
• W3106330882 startingPage "A36" @default.
• W3106330882 abstract "<i>Context. <i/>High-resolution spectroscopy has recently revealed in many low-mass X-ray binaries hosting a neutron star that the shape of the broad iron line observed in the 6.4–6.97 keV range is consistently well-fitted by a relativistically smeared line profile.<i>Aims. <i/>The presence of other broad features, besides the iron line, together with a high S/N of the spectra offer the possibility of testing a self-consistent approach to the overall broadband reflection spectrum and evaluating the impact of the reflection component in the formation of the broadband X-ray spectra.<i>Methods. <i/>We analyzed two XMM-Newton observations of the bright atoll source 4U 1705-44, which can be considered a prototype of the class of the persistent NS LMXBs showing both hard and soft states. The first observation was performed when the source was in a hard low flux state, the second during a soft, high-flux state. Both the spectra show broad iron emission lines. We fit the spectra using a two-component model, together with a reflection model specifically suited to the case of a neutron star, where the incident spectrum has a blackbody shape.<i>Results. <i/>In the soft state, the reflection model, convolved with a relativistic smearing component, consistently describes the broad features present in the spectrum, and we find a clear relation between the temperature of the incident flux and the temperature of the harder X-ray component that we interpret as the boundary layer emission. In this state we find converging evidence that the boundary layer outer radius is ~2 times the neutron star radius. In the low flux state, we observe a change in the continuum shape of the spectrum with respect to the soft state. Still, the broad local emission features can be associated with a disk reflecting matter, but in a lower ionization state, and possibly produced in an accretion disk truncated at greater distance. <i>Conclusions. <i/>Our analysis provides strong evidence that the reflection component in soft states of LMXBs comes from to hard X-ray thermal irradiation, which we identify with the boundary layer emission, also present in the continuum model. In the hard state, the broad iron line if also produced by reflection, and the continuum disk emission can be self-consistently accounted if the disk is truncated at a greater distance than the soft state." @default.
• W3106330882 created "2020-11-23" @default.
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• W3106330882 date "2010-06-01" @default.
• W3106330882 modified "2023-10-17" @default.
• W3106330882 title "A self-consistent approach to the hard and soft states of 4U 1705-44" @default.
• W3106330882 cites W1757987097 @default.
• W3106330882 cites W1967339323 @default.
• W3106330882 cites W1968618176 @default.
• W3106330882 cites W1968694232 @default.
• W3106330882 cites W1970590396 @default.
• W3106330882 cites W1971519887 @default.
• W3106330882 cites W1979068556 @default.
• W3106330882 cites W1981663277 @default.
• W3106330882 cites W1982268011 @default.
• W3106330882 cites W1998413364 @default.
• W3106330882 cites W2005814236 @default.
• W3106330882 cites W2008281661 @default.
• W3106330882 cites W2014475710 @default.
• W3106330882 cites W2015009757 @default.
• W3106330882 cites W2017772783 @default.
• W3106330882 cites W2021082726 @default.
• W3106330882 cites W2027634026 @default.
• W3106330882 cites W2028624781 @default.
• W3106330882 cites W2036006391 @default.
• W3106330882 cites W2039866073 @default.
• W3106330882 cites W2040573793 @default.
• W3106330882 cites W2043384049 @default.
• W3106330882 cites W2044094489 @default.
• W3106330882 cites W2047918491 @default.
• W3106330882 cites W2050704377 @default.
• W3106330882 cites W2052054649 @default.
• W3106330882 cites W2053721056 @default.
• W3106330882 cites W2073081088 @default.
• W3106330882 cites W2076962161 @default.
• W3106330882 cites W2081293134 @default.
• W3106330882 cites W2082569890 @default.
• W3106330882 cites W2083123053 @default.
• W3106330882 cites W2083852799 @default.
• W3106330882 cites W2084087407 @default.
• W3106330882 cites W2089770849 @default.
• W3106330882 cites W2105903052 @default.
• W3106330882 cites W2107655534 @default.
• W3106330882 cites W2113415740 @default.
• W3106330882 cites W2113504296 @default.
• W3106330882 cites W2125521243 @default.
• W3106330882 cites W2130159422 @default.
• W3106330882 cites W2134295848 @default.
• W3106330882 cites W2140646506 @default.
• W3106330882 cites W2147587557 @default.
• W3106330882 cites W2148585799 @default.
• W3106330882 cites W2154051073 @default.
• W3106330882 cites W2154078330 @default.
• W3106330882 cites W2159261874 @default.
• W3106330882 cites W2163505141 @default.
• W3106330882 cites W2242214944 @default.
• W3106330882 cites W2952678633 @default.
• W3106330882 cites W3098472422 @default.
• W3106330882 cites W3098621780 @default.
• W3106330882 cites W3098900157 @default.
• W3106330882 cites W3098904183 @default.
• W3106330882 cites W3099454443 @default.
• W3106330882 cites W3099841661 @default.
• W3106330882 cites W3101222249 @default.
• W3106330882 cites W3101685607 @default.
• W3106330882 cites W3102055425 @default.
• W3106330882 cites W3102253931 @default.
• W3106330882 cites W3102431369 @default.
• W3106330882 cites W3102682051 @default.
• W3106330882 cites W3103358323 @default.
• W3106330882 cites W3103493746 @default.
• W3106330882 cites W3103843170 @default.
• W3106330882 cites W3104550386 @default.
• W3106330882 cites W3104701349 @default.
• W3106330882 cites W3105091793 @default.
• W3106330882 cites W3105135624 @default.
• W3106330882 cites W3105355850 @default.
• W3106330882 cites W3123112321 @default.
• W3106330882 doi "https://doi.org/10.1051/0004-6361/200913758" @default.
• W3106330882 hasPublicationYear "2010" @default.
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