Journal article Open Access

Constraining Dark Energy with Type Ia Supernovae and Large-Scale Structure

Perlmutter, Saul; Turner, Michael S.; White, Martin


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  <identifier identifierType="URL">https://zenodo.org/record/1233929</identifier>
  <creators>
    <creator>
      <creatorName>Perlmutter, Saul</creatorName>
      <givenName>Saul</givenName>
      <familyName>Perlmutter</familyName>
    </creator>
    <creator>
      <creatorName>Turner, Michael S.</creatorName>
      <givenName>Michael S.</givenName>
      <familyName>Turner</familyName>
    </creator>
    <creator>
      <creatorName>White, Martin</creatorName>
      <givenName>Martin</givenName>
      <familyName>White</familyName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0001-9912-5070</nameIdentifier>
    </creator>
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  <titles>
    <title>Constraining Dark Energy with Type Ia Supernovae and Large-Scale Structure</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>1999</publicationYear>
  <dates>
    <date dateType="Issued">1999-07-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/1233929</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/physrevlett.83.670</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://creativecommons.org/publicdomain/zero/1.0/legalcode">Creative Commons Zero v1.0 Universal</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">Measurements of the distances to type Ia supernovae have produced strong evidence that the expansion of the Universe is accelerating, implying the existence of a nearly uniform component of dark energy with negative pressure. We show that constraints to this mysterious component based upon large-scale structure nicely complement the SN Ia data, and that together they require ${$Ω${}}_{X}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}{$ρ${}}_{X}/{$ρ${}}_{\mathrm{crit}}$𝟄${}(0.6,0.7)$ and ${w\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}p}_{X}/{$ρ${}}_{X}&amp;lt;$-${}0.6$ ( $95%$ C.L.), for the favored flat Universe. Other cosmological data support this conclusion. The simplest explanation, a cosmological constant, is consistent with this, while some of the other possibilities are not.</description>
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