1 Ocak 2016 Dergi makalesi Açık Erişim

Eksi, K. Y.; Andac, I. C.; Cikintoglu, S.; Gugercinoglu, E.; Motlagh, A. Vahdat; Kiziltan, B.

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/57187</identifier>
  <creators>
    <creator>
      <creatorName>Eksi, K. Y.</creatorName>
      <givenName>K. Y.</givenName>
      <familyName>Eksi</familyName>
    </creator>
    <creator>
      <creatorName>Andac, I. C.</creatorName>
      <givenName>I. C.</givenName>
      <familyName>Andac</familyName>
      <affiliation>Istanbul Tech Univ, Fac Sci &amp; Letters, Dept Engn Phys, TR-34469 Istanbul, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Cikintoglu, S.</creatorName>
      <givenName>S.</givenName>
      <familyName>Cikintoglu</familyName>
      <affiliation>Istanbul Tech Univ, Fac Sci &amp; Letters, Dept Engn Phys, TR-34469 Istanbul, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Gugercinoglu, E.</creatorName>
      <givenName>E.</givenName>
      <familyName>Gugercinoglu</familyName>
      <affiliation>Istanbul Univ, Dept Astron &amp; Space Sci, Fac Sci, TR-34119 Istanbul, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Motlagh, A. Vahdat</creatorName>
      <givenName>A. Vahdat</givenName>
      <familyName>Motlagh</familyName>
      <affiliation>Istanbul Tech Univ, Fac Sci &amp; Letters, Dept Engn Phys, TR-34469 Istanbul, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Kiziltan, B.</creatorName>
      <givenName>B.</givenName>
      <familyName>Kiziltan</familyName>
      <affiliation>Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA</affiliation>
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  <titles>
    <title>The Inclination Angle And Evolution Of The Braking Index Of Pulsars With Plasma-Filled Magnetosphere: Application To The High Braking Index Of Psr J1640-4631</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2016</publicationYear>
  <dates>
    <date dateType="Issued">2016-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/57187</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.3847/0004-637X/823/1/34</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">The recently discovered rotationally powered pulsar PSR J1640-4631 is the first to have a braking index measured, with high enough precision, that is greater than 3. An inclined magnetic rotator in vacuum or plasma would be subject not only to spin-down but also to an alignment torque. The vacuum model can address the braking index only for an almost orthogonal rotator, which is incompatible with the single-peaked pulse profile. The magnetic dipole model with the corotating plasma predicts braking indices between 3 and 3.25. We find that the braking index of 3.15 is consistent with two different inclination angles, 18 degrees.5 +/- 3 degrees and 56 degrees +/- 4 degrees. The smaller angle is preferred given that the pulse profile has a single peak and the radio output of the source is weak. We infer the change in the inclination angle to be at the rate -0 degrees.23 per century, three times smaller in absolute value than the rate recently observed for the Crab pulsar.</description>
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