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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국우주과학회 Journal of Astronomy and Space Sciences Journal of Astronomy and Space Sciences 제36권 제2호
- 발행연도
- 2019.1
- 수록면
- 75 - 86 (12page)
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UV Psc is a typical RS CVn type system undergoing dynamic chromosphere activity. We performed photometric observations of the system in 2015 and secured new BVR light curves showing well-defined photometric waves. In this paper, we analyzed the light curves using Wilson-Devinney binary code and investigated the orbital period of the system. The combination of our light curve synthesis with the spectroscopic solution developed by previous investigators yielded the absolute parameters as: M1 = 1.104 ± 0.042 Mⵙ, R1 = 1.165 ± 0.025 Rⵙ, and L1 = 1.361 ± 0.041 Lⵙ for the primary star, and M2 = 0.809 ± 0.082 Mⵙ, R2 = 0.858 ± 0.018 Rⵙ, and L2 = 0.339 ± 0.010 Lⵙ for the secondary star. The eclipse timing diagram for accurate CCD and photoelectric timings showed that the orbital period may vary either in a downward parabolic manner or a quasi-sinusoidal pattern. If the latter is adopted as a probable pattern for the period change, a more plausible account for the cyclic variation may be the light time effect caused by a circumbinary object rather than an Applegate-mechanism occurring via variable surface magnetic field strengths.
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참고문헌 (115)
참고문헌 신청
Acerbi F / 1986 / 112th List of minima of eclipsing binaries / BBSAG Bull 79:1~4
Acerbi F / 1993 / 136th List of minima of eclipsing binaries / BBSAG Bull 103:1~7
Aeberli R / 1973 / 44th Lists of minima of eclipsing binaries / BBSAG Bull 11:1~7
Agerer F / 1999 / Photoelectric minima of selected eclipsing binaries and maxima of pulsating stars / IBVS 4712:1~5
Agerer F / 2002 / Photoelectric minima of selected eclipsing binaries and maxima of pulsating stars / IBVS 5296:1~16
Acerbi F / 1993 / 136th List of minima of eclipsing binaries / BBSAG Bull 103:1~7
Aeberli R / 1973 / 44th Lists of minima of eclipsing binaries / BBSAG Bull 11:1~7
Agerer F / 1999 / Photoelectric minima of selected eclipsing binaries and maxima of pulsating stars / IBVS 4712:1~5
Agerer F / 2002 / Photoelectric minima of selected eclipsing binaries and maxima of pulsating stars / IBVS 5296:1~16
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