1 Ocak 2017 Dergi makalesi Açık Erişim

Kamil, Ceren; Dal, Hasan Ali

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    <subfield code="a">Dal, Hasan Ali</subfield>
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    <subfield code="a">10.1017/pasa.2017.22</subfield>
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    <subfield code="a">KIC 2557430: A Triple System Containing One gamma Dor and Two Flaring Components?</subfield>
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    <subfield code="a">Kamil, Ceren</subfield>
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    <subfield code="a">The results are presented for eclipsing binary KIC 2557430. The mass ratio was computed as 0.868 +/- 0.002, while the inclination (i) was found as 69 degrees.75 +/- 0 degrees.01 with T-2 = 6271 +/- 1 K. 50 frequencies were found in the period analysis. 48 frequencies of them are caused due to the primary component, a Doradus star, while two of them are caused by the cool spots. 69 flares were detected in the analyses. Two OPEA models were derived for flares, which indicates that the flares were come from two different sources. The Plateau value was found to be 1.4336 +/- 0.1104 s for Source 1, which is seen as possible the secondary component and 0.7550 +/- 0.0677 s for Source 2, which is seen as possible third body. The half-life value was computed as 2278.1 s for Group 1 and 1811.2 s for Group 2. The flare frequency N-1 was found to be 0.02726 h(-1) and N-2 was computed as 0.00002 for Group 1, while N-1 was found to be 0.01977 h(-1) and N-2 was computed as 0.00001 for Group 2. In a results, KIC 2557430 is a possible triple system consisting of a Doradus-type star, a chromospherically active star, and also a flaring third body.</subfield>
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