@inproceedings{eb20bfe369e44b228ec78a891fcfb74d,
title = "High resolution spectroscopy of 4U 1728-34 from a simultaneous Chandra-RXTE observation",
abstract = "We report on a simultaneous Chandra and RossiXTE observation of the LMXB atoll bursting source 4U 1728-34 between 2002 March 3rd and 2002 March 5th. We fitted the 1.2-35 keV continuum with a blackbody spectrum plus a Comptonized component. Absorption edges associated with Fe I and Fe XXV at ∼ 7.1 keV and ∼ 9 keV respectively, are present in our spectrum. Moreover, an overabundance of Si is highly required for a satisfactory fit. We found no evidence in our fits of broad, or narrow Fe Kα lines, between 6 and 7 keV, contrarly to what previous spectral studies pointed out. We tested our study by reanalysing a previous BeppoSAX observation of 4U 1728-34, finding a general agreement with our new spectral model.",
keywords = "Accretion discs, Stars: individual: 4U 1728-34, Stars: neutron stars, X-ray: general, X-ray: spectrum, X-ray: stars",
author = "A. D'A{\'i} and R. Iaria and {Di Salvo}, T. and G. Lavagetto and Robba, {N. R.} and L. Burderi and M. Mendez and {Van Der Klis}, M.",
year = "2005",
month = may,
day = "21",
doi = "10.1063/1.2130281",
language = "English",
isbn = "0735402868",
series = "AIP Conference Proceedings",
publisher = "AIP Conference proceedings",
pages = "545--548",
booktitle = "Interacting binaries",
note = "INTERACTING BINARIES: Accretion, Evolution, and Outcomes ; Conference date: 04-07-2004 Through 10-07-2004",
}