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A New Planet in the Kepler-159 System From Transit Timing Variations
Chris Fox, Paul Wiegert
The Kepler Space Telescope has discovered thousands of planets via the transit method. The transit timing variations of these planets allows us not only to infer the existence of o…
The Draconid meteoroid stream 2018: prospects for satellite impact detection
Auriane Egal, Paul Wiegert, Peter G. Brown +3
Predictions of the 2018 Draconid activity at the Earth and the Sun-Earth L1 and L2 Lagrange points are presented. Numerical simulations of the meteoroids' ejection and evolution fr…
In Search of Recent Disruption of (3200) Phaethon: Model Implication and Hubble Space Telescope Search
Quanzhi Ye, Paul A. Wiegert, Man-To Hui
Near-Earth asteroid (3200) Phaethon is notable for its association to a strong annual meteor shower, the Geminids, indicative of one or more episodes of mass ejection in the past.…
Applying a Particle-only Model to the HL Tau Disk
Maryam Tabeshian, Paul A. Wiegert
Observations have revealed rich structures in protoplanetary disks, offering clues about their embedded planets. Due to the complexities introduced by the abundance of gas in these…
Finding Long Lost Lexell's Comet: The Fate of the First Discovered Near-Earth Object
Quan-Zhi Ye, Paul A. Wiegert, Man-To Hui
Jupiter-family Comet D/1770 L1 (Lexell) was the first discovered Near-Earth Object (NEO), and passed the Earth on 1770 Jul 1 at a recorded distance of 0.015 au. The comet was subse…