A Chandra Survey of Fluorescence Fe Lines in X-ray Binaries at High Resolution

Fe K line fluorescence is commonly observed in the X-ray spectra of many X-ray binaries (XRBs) and represents a fundamental tool to investigate the material surrounding the X-ray source. In this paper, we present a comprehensive survey of 41 XRBs (10 HMXBs and 31 LMXBs) with Chandra with specific em...

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Bibliographic Details
Published in:The Astrophysical journal 2010-06, Vol.715 (2), p.947-947
Main Authors: Torrejón, J. M, Schulz, N. S, Nowak, M. A, Kallman, T. R
Format: Article
Language:English
Subjects:
ABUNDANCE
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
ASYMMETRY
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
EMISSION
FLUORESCENCE
GALAXY NUCLEI
High resolution
IONIZATION
Iron
LUMINESCENCE
MASS
PHOTON EMISSION
SPECTRA
STARS
STELLAR ACTIVITY
STELLAR WINDS
X-RAY SPECTRA
X-rays
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Summary:Fe K line fluorescence is commonly observed in the X-ray spectra of many X-ray binaries (XRBs) and represents a fundamental tool to investigate the material surrounding the X-ray source. In this paper, we present a comprehensive survey of 41 XRBs (10 HMXBs and 31 LMXBs) with Chandra with specific emphasis on the Fe K region and the narrow Fe K{alpha} line, at the highest resolution possible. We find that (1) the Fe K{alpha} line is always centered at {lambda} = 1.9387 {+-} 0.0016 A, compatible with Fe I up to Fe X; we detect no shifts to higher ionization states nor any difference between high mass X-ray binaries (HMXBs) and low mass X-ray binaries (LMXBs). (2) The line is very narrow, with FWHM {
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/715/2/947