1 Ocak 2019 Dergi makalesi Açık Erişim

Altan, Metin; Kato, Taichi; Ishioka, Ryoko; Schmidtobreick, Linda; Guver, Tolga; Uemura, Makoto; Ak, Tansel; Bianchini, Antonio; Ayyildiz, Omer; Matsumoto, Katsura; Esenoglu, Hasan; Bektore, Emre; Ohshima, Tomohito; Ozkan, Turker; Orakoglu, Onder; Nakata, Chikako; Hori, Takafumi; Masumoto, Kazunari; Akazawa, Hide; Kawabata, Miho

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/112398</identifier>
  <creators>
    <creator>
      <creatorName>Altan, Metin</creatorName>
      <givenName>Metin</givenName>
      <familyName>Altan</familyName>
    </creator>
    <creator>
      <creatorName>Kato, Taichi</creatorName>
      <givenName>Taichi</givenName>
      <familyName>Kato</familyName>
      <affiliation>Kyoto Univ, Dept Astron, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto 6158558, Japan</affiliation>
    </creator>
    <creator>
      <creatorName>Ishioka, Ryoko</creatorName>
      <givenName>Ryoko</givenName>
      <familyName>Ishioka</familyName>
      <affiliation>Natl Taiwan Univ, Inst Astron &amp; Astrophys, Acad Sinica, 11F Astron Math Bldg,1,Sect 4,Roosevelt Rd, Taipei 10617, Taiwan</affiliation>
    </creator>
    <creator>
      <creatorName>Schmidtobreick, Linda</creatorName>
      <givenName>Linda</givenName>
      <familyName>Schmidtobreick</familyName>
      <affiliation>European Southern Observ, Alonso de Cordova 3107, Vitacura Santiago 19001, Chile</affiliation>
    </creator>
    <creator>
      <creatorName>Guver, Tolga</creatorName>
      <givenName>Tolga</givenName>
      <familyName>Guver</familyName>
      <affiliation>Istanbul Univ, Fac Sci, Dept Astron &amp; Space Sci, TR-34119 Istanbul, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Uemura, Makoto</creatorName>
      <givenName>Makoto</givenName>
      <familyName>Uemura</familyName>
      <affiliation>Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Kagamiyama 1-3-1, Higashihiroshima 7398526, Japan</affiliation>
    </creator>
    <creator>
      <creatorName>Ak, Tansel</creatorName>
      <givenName>Tansel</givenName>
      <familyName>Ak</familyName>
      <affiliation>Istanbul Univ, Fac Sci, Dept Astron &amp; Space Sci, TR-34119 Istanbul, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Bianchini, Antonio</creatorName>
      <givenName>Antonio</givenName>
      <familyName>Bianchini</familyName>
      <affiliation>Univ Padua, Dept Phys &amp; Astron, I-35121 Padua, Italy</affiliation>
    </creator>
    <creator>
      <creatorName>Ayyildiz, Omer</creatorName>
      <givenName>Omer</givenName>
      <familyName>Ayyildiz</familyName>
      <affiliation>EskiSehir Tech Univ, Grad Sch Sci, TR-26470 Eskisehir, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Matsumoto, Katsura</creatorName>
      <givenName>Katsura</givenName>
      <familyName>Matsumoto</familyName>
      <affiliation>Osaka Kyoiku Univ, 4-698-1 Asahigaoka, Osaka 5828582, Japan</affiliation>
    </creator>
    <creator>
      <creatorName>Esenoglu, Hasan</creatorName>
      <givenName>Hasan</givenName>
      <familyName>Esenoglu</familyName>
      <affiliation>Istanbul Univ, Fac Sci, Dept Astron &amp; Space Sci, TR-34119 Istanbul, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Bektore, Emre</creatorName>
      <givenName>Emre</givenName>
      <familyName>Bektore</familyName>
      <affiliation>EskiSehir Tech Univ, Inst Earth &amp; Space Sci, TR-26470 Eskisehir, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Ohshima, Tomohito</creatorName>
      <givenName>Tomohito</givenName>
      <familyName>Ohshima</familyName>
      <affiliation>Kyoto Univ, Dept Astron, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto 6158558, Japan</affiliation>
    </creator>
    <creator>
      <creatorName>Ozkan, Turker</creatorName>
      <givenName>Turker</givenName>
      <familyName>Ozkan</familyName>
      <affiliation>Istanbul Univ, Fac Sci, Dept Astron &amp; Space Sci, TR-34119 Istanbul, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Orakoglu, Onder</creatorName>
      <givenName>Onder</givenName>
      <familyName>Orakoglu</familyName>
      <affiliation>EskiSehir Tech Univ, Grad Sch Sci, TR-26470 Eskisehir, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Nakata, Chikako</creatorName>
      <givenName>Chikako</givenName>
      <familyName>Nakata</familyName>
      <affiliation>Kyoto Univ, Dept Astron, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto 6158558, Japan</affiliation>
    </creator>
    <creator>
      <creatorName>Hori, Takafumi</creatorName>
      <givenName>Takafumi</givenName>
      <familyName>Hori</familyName>
      <affiliation>Kyoto Univ, Dept Astron, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto 6158558, Japan</affiliation>
    </creator>
    <creator>
      <creatorName>Masumoto, Kazunari</creatorName>
      <givenName>Kazunari</givenName>
      <familyName>Masumoto</familyName>
      <affiliation>Osaka Kyoiku Univ, 4-698-1 Asahigaoka, Osaka 5828582, Japan</affiliation>
    </creator>
    <creator>
      <creatorName>Akazawa, Hide</creatorName>
      <givenName>Hide</givenName>
      <familyName>Akazawa</familyName>
      <affiliation>Okayama Univ Sci, Fac Informat, Dept Biosphere Geosphere Syst Sci, 1-1 Ridai Cho, Okayama, Okayama 7000005, Japan</affiliation>
    </creator>
    <creator>
      <creatorName>Kawabata, Miho</creatorName>
      <givenName>Miho</givenName>
      <familyName>Kawabata</familyName>
    </creator>
  </creators>
  <titles>
    <title>Superhump Period Of Sdss J214354.59+124457.8: First Z Cam Star With Superhumps In The Standstill</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2019</publicationYear>
  <dates>
    <date dateType="Issued">2019-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/112398</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1093/mnras/stz2247</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 cataclysmic variable SDSS J214354.59+124457.8 (hereafter SDSS J214354) was observed photometrically on sixty one nights between 2012 July 28 and 2019 May 26. The long term variation of this object shows changes between two phases; a dwarf nova type and a novalike. This implies that the object belongs to the group of Z Cam type stars. The timing analysis of the light curve reveals a periodic signal at 0.13902(5) d, which we identify as the superhump period. However, the fractional superhump excess of 10 per cent longer than the orbital period is exceptionally large. We obtained a mass ratio of similar to 0.4, which is above the accepted upper limit of q = 0.33 for the formation of superhumps. We suggest that the object contains a secondary with an evolved core. With an orbital period of 0.126 d, SDSS J214354 is situated at the upper border of the period gap. The long term light curve of SDSS J214354 is similar to those of Z Cam type stars which are characterized by recurring standstills, followed by short intervals with DN type outbursts. Therefore, we conclude that SDSS J214354 is a new member of the Z Cam type stars.</description>
  </descriptions>
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