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Comparative Study of the Solar Wind: Modeling Charge State Distributions in the Heliosphere

Dupont, Marcus


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  <identifier identifierType="DOI">10.5281/zenodo.1486247</identifier>
  <creators>
    <creator>
      <creatorName>Dupont, Marcus</creatorName>
      <givenName>Marcus</givenName>
      <familyName>Dupont</familyName>
      <affiliation>Florida State University</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Comparative Study of the Solar Wind: Modeling Charge State Distributions in the Heliosphere</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2018</publicationYear>
  <subjects>
    <subject>Solar Wind</subject>
  </subjects>
  <contributors>
    <contributor contributorType="Supervisor">
      <contributorName>Shen, Chengcai</contributorName>
      <givenName>Chengcai</givenName>
      <familyName>Shen</familyName>
      <affiliation>Harvard-Smi</affiliation>
    </contributor>
    <contributor contributorType="Supervisor">
      <contributorName>Murphy, Nick</contributorName>
      <givenName>Nick</givenName>
      <familyName>Murphy</familyName>
      <affiliation>Harvard-</affiliation>
    </contributor>
  </contributors>
  <dates>
    <date dateType="Issued">2018-11-13</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Presentation</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/1486247</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.5281/zenodo.1486246</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://zenodo.org/communities/reu-pres-2018</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Non-equilibrium ionization (NEI) is a key process often times ignored when modeling astrophysical&amp;nbsp;plasmas whose thermodynamical timescales are much shorter than the timescales for ionization&amp;nbsp;and recombination. In this paper, we use magnetohydrodynamics (MHD) models alongside numerical NEI simulations to calculate synthetic charge state distributions during the Whole Sun&amp;nbsp;Month interval (CR)-1913 (1996, 22 August to 1996, 18 September), and compare them with in-situ measurements made with the Ulysses Solar Wind Ion Spectrometer Composition (SWICS)&amp;nbsp;instrument. The key ndings of our analysis have: (1) shown that the solar wind speeds at 20 R&lt;sub&gt;s&lt;/sub&gt;&amp;nbsp;calculated by the &lt;em&gt;Magnetohydrodynamics Around a Sphere&lt;/em&gt; (MAS) model were not in agreement&amp;nbsp;with the Ulysses observations; (2) measured the &amp;quot;freeze-in&amp;quot;&amp;nbsp;distance for each ion observed by the&amp;nbsp;SWICS instrument to determine a possible correlation between when the ionization states become fixed and their expansion into the solar wind; (3) shown how di erent charge state densities and&amp;nbsp;abundance ratios compared with observation.&lt;/p&gt;</description>
    <description descriptionType="Other">This work supported by NSF  SHINE Grant AGS-1723313.</description>
  </descriptions>
</resource>
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