DASCH ON KU Cyg: A ∼ 5 YEAR DUST ACCRETION EVENT IN ∼ 1900

@article{Tang2011DASCHOK,
  title={DASCH ON KU Cyg: A ∼ 5 YEAR DUST ACCRETION EVENT IN ∼ 1900},
  author={Sumin Tang and Jonathan E. Grindlay and Edward Los and Mathieu Servillat},
  journal={The Astrophysical Journal},
  year={2011},
  volume={738},
  pages={7}
}
KU Cyg is an eclipsing binary consisting of an F-type star accreting through a large accretion disk from a K5III red giant. Here we present the discovery of a 5 year dip around 1900 found from its 100 year DASCH light curve. It showed a ~0.5 mag slow fading from 1899 to 1903 and brightened back around 1904 on a relatively shorter timescale. The light curve shape of the 1899-1904 fading-brightening event differs from the dust production and dispersion process observed in R Coronae Borealis stars… Expand

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