KIC 4247791: A SB4 system with two eclipsing binaries (2EBs)
作者： M. Zechmeister , S. Schuh , H. Lehmann , R. Kanzler , S. Dreizler
DOI: 10.1051/0004-6361/201118298
关键词:
摘要: KIC 4247791 is an eclipsing binary observed by the Kepler satellite mission. We wish to determine nature of its components and in particular origin a shallow dip light curve that previous investigations have been unable explain unique way. analyze newly obtained high-resolution spectra star using synthetic based on atmosphere models, derive radial velocities stellar from cross-correlation with template, calculate orbital solution. use JKTEBOP program model 4247791. find be SB4 star. The velocity variations four can explained two separate binaries. In contradiction photometric findings, we show composite spectrum as well derived masses all correspond spectral type F. small not caused transit-like phenomenon but eclipses second system. evidence might belong very rare hierarchical systems
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128.84.21.199参考文章(26)
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