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K‐line X‐ray fluorescence from highly charged iron ions under dense astrophysical plasma conditions

Deprince, Jérôme and Bautista, Manuel and Fritzsche, Stephan and García, Javier and Kallman, Timothy and Mendoza, Claudio and Palmeri, Patrick and Quinet, Pascal (2020) K‐line X‐ray fluorescence from highly charged iron ions under dense astrophysical plasma conditions. X-Ray Spectrometry, 49 (1). pp. 29-32. ISSN 0049-8246. https://resolver.caltech.edu/CaltechAUTHORS:20190422-091140727

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Abstract

In the present work, we report an investigation of plasma environment effects on the atomic parameters associated with the K‐vacancy states in highly charged iron ions within the astrophysical context of accretion disks around black holes. More particularly, the sensitivity of K‐line X‐ray fluorescence parameters (wavelengths, radiative transition probabilities, and Auger rates) in Fe XVII–Fe XXV ions has been estimated for plasma conditions characterized by an electron temperature ranging from 10⁵ to 10⁷ K and an electron density ranging from 10¹⁸ to 10²² cm⁻³. In order to do this, relativistic multiconfiguration Dirac‐Fock atomic structure calculations have been carried out by considering a time averaged Debye‐Hückel potential for both the electron–nucleus and electron–electron interactions.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1002/xrs.3040DOIArticle
ORCID:
AuthorORCID
Deprince, Jérôme0000-0002-3409-8232
García, Javier0000-0003-3828-2448
Kallman, Timothy0000-0002-5779-6906
Additional Information:© 2019 John Wiley & Sons. Manuscript received: 22 November 2018. Manuscript revised: 15 February 2019. Manuscript accepted: 04 March 2019. Version of Record online: 22 April 2019.
Funders:
Funding AgencyGrant Number
NASAAPRA15‐0114
Issue or Number:1
Record Number:CaltechAUTHORS:20190422-091140727
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190422-091140727
Official Citation:Deprince, J, Bautista, M, Fritzsche, S, et al. K‐line X‐ray fluorescence from highly charged iron ions under dense astrophysical plasma conditions. X‐Ray Spectrometry. 2020; 49: 29–32. https://doi.org/10.1002/xrs.3040
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94833
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:22 Apr 2019 23:09
Last Modified:02 Jan 2020 19:21

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