Empirical Functions for Highly Charged Ion Abundances in Solar Wind Charge Exchange Models: Addressing Post-2011 ACE Data Limitations

Empirical Functions for Highly Charged Ion Abundances in Solar Wind Charge Exchange Models: Addressing Post-2011 ACE Data Limitations | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 9 January 2025 V1 Latest version Share on Empirical Functions for Highly Charged Ion Abundances in Solar Wind Charge Exchange Models: Addressing Post-2011 ACE Data Limitations Authors : Dimitra Koutroumpa 0000-0002-5716-3412 [email protected] , K. D. Kuntz 0000-0001-6654-5378 , Jennifer Alyson Carter 0000-0002-0981-2895 , Jim M Raines 0000-0001-5956-9523 , Susan Lepri 0000-0003-1611-227X , and Liang Zhao 0000-0002-5975-7476 Authors Info & Affiliations https://doi.org/10.22541/au.173645542.27617173/v1 Published Geophysical Research Letters Version of record Peer review timeline 228 views 154 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Upcoming imaging missions - NASA’s LEXI and ESA/CAS’s SMILE - will target solar wind charge exchange X-ray (SWCX) emission from Earth’s magnetosheath. This emission is generated by highly charged ions colliding with neutrals in Earth’s exosphere. Accurate SWCX models require data on exospheric neutral densities, as well as solar wind flux and composition. The Advanced Composition Explorer (ACE) Solar Wind Ionic Composition Spectrometer (SWICS) provided the needed solar wind composition data from 1998 until an instrument anomaly in 2011 limited its outputs. To address this, we developed empirical functions using ion ratios (O 7+ /O 6+ , O 8+ /O 6+ , C 6+ /C 5+ ) still available from ACE, partially compensating for missing composition data. The results underscore the need for a new mission to measure solar wind composition and support future SWCX analysis efforts. Supplementary Material File (1018589_0_merged_1734879330.pdf) Download 7.78 MB File (dkoutroumpa_empirical_ionfunctions.pdf) Download 7.75 MB Information & Authors Information Version history V1 Version 1 09 January 2025 Peer review timeline Published Geophysical Research Letters Version of Record 17 Apr 2025 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords abundance heavy ions solar corona solar wind Authors Affiliations Dimitra Koutroumpa 0000-0002-5716-3412 [email protected] Laboratoire Atmospheres Milieux Observations Spatiales View all articles by this author K. D. Kuntz 0000-0001-6654-5378 Johns Hopkins University View all articles by this author Jennifer Alyson Carter 0000-0002-0981-2895 University of Leicester View all articles by this author Jim M Raines 0000-0001-5956-9523 University of Michigan-Ann Arbor View all articles by this author Susan Lepri 0000-0003-1611-227X University of Michigan-Ann Arbor View all articles by this author Liang Zhao 0000-0002-5975-7476 University of Michigan-Ann Arbor View all articles by this author Metrics & Citations Metrics Article Usage 228 views 154 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Dimitra Koutroumpa, K. D. Kuntz, Jennifer Alyson Carter, et al. Empirical Functions for Highly Charged Ion Abundances in Solar Wind Charge Exchange Models: Addressing Post-2011 ACE Data Limitations. Authorea . 09 January 2025. DOI: https://doi.org/10.22541/au.173645542.27617173/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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