Uncertainties in Atomic Data for Modeling Astrophysical Charge Exchange Plasmas
@article{Gu2022UncertaintiesIA, title={Uncertainties in Atomic Data for Modeling Astrophysical Charge Exchange Plasmas}, author={Liyi Gu and Chintan Shah and Ruitian Zhang}, journal={Sensors (Basel, Switzerland)}, year={2022}, volume={22} }
Relevant uncertainties of theoretical atomic data are vital to determining the accuracy of plasma diagnostics in a number of areas, including, in particular, the astrophysical study. We present a new calculation of the uncertainties on the present theoretical ion-impact charge exchange atomic data and X-ray spectra, based on a set of comparisons with the existing laboratory data obtained in historical merged-beam, cold-target recoil-ion momentum spectroscopy, and electron beam ion traps…
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References
SHOWING 1-10 OF 97 REFERENCES
X-ray spectra of the Fe-L complex
- PhysicsAstronomy & Astrophysics
- 2020
The Hitomi results for the Perseus cluster have shown that accurate atomic models are essential to the success of X-ray spectroscopic missions and just as important as the store of knowledge on…
Systematic comparison of photoionised plasma codes with application to spectroscopic studies of AGN in X-rays
- Physics
- 2016
Atomic data and plasma models play a crucial role in the diagnosis and interpretation of astrophysical spectra, thus influencing our understanding of the Universe. In this investigation we present a…
The propagation of uncertainties in atomic data through collisional-radiative models
- Physics
- 2013
The demand for meaningful uncertainties on theoretical atomic data has increased in recent years, with a focus on determining and improving the accuracy of spectral diagnostics in a number of key…
X-ray spectra of the Fe-L complex II. Atomic data constraints from the EBIT experiment and X-ray grating observations of Capella
- Physics
- 2020
The Hitomi results for the Perseus cluster have shown that accurate atomic models are essential to the success of X-ray spectroscopic missions and just as important as the store of knowledge on…
Incorporating Uncertainties in Atomic Data into the Analysis of Solar and Stellar Observations: A Case Study in Fe xiii
- PhysicsThe Astrophysical Journal
- 2018
Information about the physical properties of astrophysical objects cannot be measured directly but is inferred by interpreting spectroscopic observations in the context of atomic physics…
Highly charged ions in magnetic fusion plasmas: research opportunities and diagnostic necessities
- Physics
- 2014
Highly charged ions play a crucial role in magnetic fusion plasmas. These plasmas are excellent sources for producing highly charged ions and copious amounts of radiation for studying their atomic…
Observation of highly disparate K-shell x-ray spectra produced by charge exchange with bare mid-Z ions
- Physics
- 2014
We performed charge-exchange experiments with the electron-beam ion trap and an x-ray calorimeter spectrometer at the Lawrence Livermore National Laboratory. We compare the relative strength of the…
Approximating the X-ray spectrum emitted from astrophysical charge exchange
- Physics
- 2012
Charge exchange (CX), both onto ions in the solar wind and potentially in other astrophysical contexts, can create X-ray emission lines largely indistinguishable from those created in collisional or…
EBIT charge-exchange measurements and astrophysical applications
- Physics
- 2007
The past decade has seen a surge of interest in astrophysical charge exchange (CX). The impetus was the discovery of X-ray emission from comets in 1996, soon followed by the observation of CX…
Measurement of n-resolved State-selective Charge Exchange in Ne(8,9)+ Collision with He and H2
- PhysicsThe Astrophysical Journal Supplement Series
- 2021
Charge exchange between highly charged ions and neutral atoms and molecules has been considered as one of the important mechanisms controlling soft X-ray emissions in many astrophysical objects and…