I Spy Transits and Pulsations: Empirical Variability in White Dwarfs Using Gaia and the Zwicky Transient Facility

@article{Guidry2020IST,
  title={I Spy Transits and Pulsations: Empirical Variability in White Dwarfs Using Gaia and the Zwicky Transient Facility},
  author={Joseph A. Guidry and Zach Vanderbosch and J. J. Hermes and Brad N. Barlow and Isaac D. Lopez and Thomas M. Boudreaux and Kyle A. Corcoran and Keaton J. Bell and Michael H. Montgomery and Tyler M. Heintz and B{\'a}rbara Garcia Castanheira and Joshua S. Reding and Bart H. Dunlap and Don E. Winget and Karen I. Winget and John William Kuehne},
  journal={The Astrophysical Journal},
  year={2020},
  volume={912}
}
We present a novel method to detect variable astrophysical objects and transient phenomena using anomalous excess scatter in repeated measurements from public catalogs of Gaia DR2 and Zwicky Transient Facility (ZTF) DR3 photometry. We first provide a generalized, all-sky proxy for variability using only Gaia DR2 photometry, calibrated to white dwarf stars. To ensure more robust candidate detection, we further employ a method combining Gaia with ZTF photometry and alerts. To demonstrate its… 

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