1486249
doi
10.5281/zenodo.1486249
oai:zenodo.org:1486249
user-reu-pres-2018
Foster, Adam
Harvard-Smithsonian
Improving the Spectral Fit for the Diffuse Soft X-ray Background using ATOMDB Charge Exchange Models
Vázquez Pérez, Germán
University of Puerto Rico, Mayagüez
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
X-ray sources: diffuse background
Solar astronomy: solar wind
<p>The origin of the diffuse soft X-ray background has always been ground for many questions and debates. Previous investigations have concluded that this background radiation could be mostly due to charge exchange (CX), caused by the interaction between highly energized ions from the solar winds and neutral hydrogen and helium atoms. In 2014, simplified CX models were constructed, which successfully fit the high-resolution spectral data from the Diffuse X-ray Spectrometer mission (DXS), flown in 1993 (Smith, 2014). This model has since been deployed to analyze potential CX in a range of other plasmas (Zhang et al., 2017). In 2017, updated CX cross section data was released by the Kronos project, including velocity dependent cross sections for all ions. In this project, we incorporate this data into the CX models, then compare the two versions of the AtomDB Charge Exchange Model (ACX) by re-analyzing the DXS data for the solar winds. Our results show significant changes in the spectrum for some ions, but an overall improvement in the model fit.</p>
This project is supported by the Smithsonian's Minority Awards Internship program
Zenodo
2018-11-13
info:eu-repo/semantics/lecture
1486248
user-reu-pres-2018
1579535965.574277
780730
md5:93654aff5060a2c32e063de6b5dd0bbe
https://zenodo.org/records/1486249/files/Vazquez_presentation.pdf
846157
md5:5d95e3d2b1759070e1eaa92fee13a2ad
https://zenodo.org/records/1486249/files/Vazquez_presentation.pptx
public
10.5281/zenodo.1486248
isVersionOf
doi