ASAS-SN Identification of FY Sct as a Detached Eclipsing Binary System with a 2.6 Years Period

Article

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, S.; Pawlak, M.; Pejcha, O.

Res. Notes AAS 2(3) (2018)

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Abstract

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.

Institute authors

Supported by

Primus/17/SCI/17 — Teorie a pozorování astronomických tranzientů: supernovy z hmotných hvězd a splynutí hvězd

BibTeX

@article{UTF680,
  author        = {Jayasinghe, T. and Stanek, K. Z. and Kochanek, C. S. and Shappee, B. J. and Holoien, T. W.-S. and Thompson, T. A. and Prieto, J. L. and Dong, S. and Pawlak, M. and Pejcha, O.},
  title         = {{ASAS-SN Identification of FY Sct as a Detached Eclipsing Binary System with a 2.6 Years Period}},
  journal       = {Res. Notes AAS},
  volume        = {2},
  number        = {3},
  year          = {2018},
  doi           = {10.3847/2515-5172/aae433},
}