ASAS-SN Identification of FY Sct as a Detached Eclipsing Binary System with a 2.6 Years Period
Jayasinghe, T.; Stanek, K. Z.; Kochanek, C. S.; Shappee, B. J.; Holoien, T. W. -S.; Thompson, T. A.; Prieto, J. L.; Dong, Subo; Pawlak, M.; Pejcha, O.
We report the identification of the bright (V ∼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 ∼2.57 years and the primary eclipse lasts ∼73 days. The eclipse profile is suggestive of a disk eclipsing binary rather than a stellar component. We also detect ∼0.4 mag pulsations with a period of P ∼78 d. The next eclipse begins on September, 28, 2018. Further photometric and spectroscopic observations are encouraged, particularly when the system is in eclipse.
| type: | article |
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| journal: | Research Notes of the AAS |
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| volume: | 2 |
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| nr: | 3 |
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| year: | 2018 |
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| grants: | Teorie a pozorování astronomických tranzientů: supernovy z hmotných hvězd a splynutí hvězd, Primus/17/SCI/17; 2017-2019; hlavní řešitel: Ondřej Pejcha |
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