2017
DOI: 10.1051/0004-6361/201628507
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Absorption and scattering by interstellar dust in the silicon K-edge of GX 5-1

Abstract: Context. We study the absorption and scattering of X-ray radiation by interstellar dust particles, which allows us to access the physical and chemical properties of dust. The interstellar dust composition is not well understood, especially on the densest sight lines of the Galactic Plane. X-rays provide a powerful tool in this study. Aims. We present newly acquired laboratory measurements of silicate compounds taken at the Soleil synchrotron facility in Paris using the Lucia beamline. The dust absorption profi… Show more

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Cited by 39 publications
(80 citation statements)
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References 95 publications
(174 reference statements)
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“…However, the lower limit on the Fe abundance reported by Zeegers et al (2017), >0.76, rules out a highly subsolar Fe abundance.…”
Section: Discussionmentioning
confidence: 87%
“…However, the lower limit on the Fe abundance reported by Zeegers et al (2017), >0.76, rules out a highly subsolar Fe abundance.…”
Section: Discussionmentioning
confidence: 87%
“…The crystalline counterparts of these compounds were also artificially produced by slowly cooling the silicate mixture. The Si-bearing compounds present in the sample set correspond to the silicates already presented in detail by Zeegers et al (2017). The two iron sulfides have different origins.…”
Section: Samplementioning
confidence: 93%
“…Thus, using the X-ray spectra we can also determine abundances in different ISM environments, thereby opening a window on the study of grain evolution and the cycle between diffuse and dense or dark clouds. Dust in diffuse regions along the Galactic plane has been modelled in the X-rays by Lee et al (2009);Costantini et al (2012); Pinto et al (2013); Valencic & Smith (2015) and Zeegers et al (2017) for several lines of sight. The best targets for this kind of study are low mass X-ray binaries (LMXB), which generally emit a featureless continuum X-ray spectrum.…”
Section: Arxiv:170905359v1 [Astro-phhe] 15 Sep 2017mentioning
confidence: 99%
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“…Studies of X-ray spectra for materials in the astrophysical context are rather new, and till now done mainly for iron and silicate dust compounds using experimental synchrotron based methods (Lee & Ravel 2005;Lee et al 2009;Zeegers et al 2017;Rogantini et al 2018). Calculations of scattering and absorption of Xrays (based on realistic dielectric functions) by carbonaceous and silicate dust grains are also available (Draine 2003).…”
Section: Nanodiamondsmentioning
confidence: 99%