The Iron K-shell features of MXB 1728-34 from a Simultaneous Chandra-RXTE Observation

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dc.creatorAi, A. D'
dc.creatorDi Salvo, T.
dc.creatorIaria, R.
dc.creatorMendez, M.
dc.creatorBurderi, L.
dc.creatorLavagetto, G.
dc.creatorLewin, W. H. G.
dc.creatorRobba, N. R.
dc.creatorStella, L.
dc.creatorvan der Klis, M.
dc.date2005-11-02
dc.date.accessioned2026-07-07T06:44:50Z
dc.date.available2026-07-07T06:44:50Z
dc.descriptionWe report on a simultaneous Chandra and RossiXTE observation of the low-mass X-ray binary atoll bursting source MXB 1728-34 performed on 2002 March 3-5. We fit the 1.2-35 keV continuum spectrum with a blackbody plus a Comptonized component. Large residuals at 6-10 keV can be fitted by a broad (FWHM ~ 2 keV) Gaussian emission line or, alternatively, by two absorption edges associated with lowly ionized iron and Fe XXV/XXVI at ~7.1 keV and ~9 keV, respectively. In this interpretation, we find no evidence of broad, or narrow, emission lines between 6 and 7 keV. We test our alternative modelling of the iron K shell region by reanalysing a previous BeppoSAX observation of MXB 1728-34, finding a general agreement with our new spectral model.
dc.description6 pages, 4 figures. Accepted for publication by A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/0511072
dc.identifierhttp://arxiv.org/abs/astro-ph/0511072
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/102882
dc.subjectAstrophysics
dc.titleThe Iron K-shell features of MXB 1728-34 from a Simultaneous Chandra-RXTE Observation
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