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Laboratory X-ray Studies for Unraveling High-Resolution Celestial Spectra

Abstract : The diagnostic utility of the high resolution instruments flown on Chandra, XMM-Newton, and Suzaku is directly coupled to, and often limited by, our understanding of the atomic physics governing the X-ray emission. Hence, high accuracy, systematic laboratory measurements of X-ray emission from highly charged ions provide the necessary basis for interpreting spectra measured by X-ray observatories. Over the past two decades, electron beam ion traps have been used in laboratory astrophysics experiments to study X-ray emission from highly charged ions. These data provide reliable benchmarks of theoretical calculations and have addressed specific problems facing the X-ray astrophysics community, and will prove invaluable when interpreting the spectra measured using the SXS on Astro-H. Results focussed on addressing the Fe XVII problem and measuring the rest wavelengths of Kα transitions in L-shell ions of silicon are summarized.
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Submitted on : Sunday, February 12, 2017 - 11:30:04 AM
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G. V. Brown, S. Bernitt, J. Rudolph, R. Steinbrügge, A. Graf, et al.. Laboratory X-ray Studies for Unraveling High-Resolution Celestial Spectra. Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe, Feb 2014, Matsuyama, Japan. pp.144-145. ⟨hal-01091514⟩



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