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arXiv · 1809.09628

ASAS-SN Identification of FY Sct as a detached eclipsing binary system with a ~2.6 year period

T. Jayasinghe·K. Z. Stanek·C. S. Kochanek·B. J. Shappee·T. W. -S. Holoien·T. A. Thompson·J. L. Prieto·Subo Dong·M. Pawlak·O. Pejcha
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Abstract

We report the identification of the bright (V${\sim}13.3$ mag) star FY Sct as a long period detached eclipsing binary using a combined ASAS-SN and ASAS light curve spanning 2000-2018. The orbital period is P${\sim}2.57$ years and the primary eclipse lasts ${\sim}73$ days. The eclipse profile is suggestive of a disk eclipsing binary rather than a stellar component. We also detect ${\sim}0.4$ mag pulsations with a period of P${\sim78}$ d. The next eclipse begins on September, 28, 2018. Further photometric and spectroscopic observations are encouraged, particularly when the system is in eclipse.

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T. Jayasinghe, K. Z. Stanek, C. S. Kochanek, B. J. Shappee, T. W. -S. Holoien, T. A. Thompson, J. L. Prieto, Subo Dong, M. Pawlak, O. Pejcha. 2018-09-25. ASAS-SN Identification of FY Sct as a detached eclipsing binary system with a ~2.6 year period. https://arxiv.org/abs/1809.09628

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