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Kepler Transit Depths Contaminated by a Phantom Star
Paul A. Dalba, Philip S. Muirhead, Bryce Croll +1
We present ground-based observations from the Discovery Channel Telescope (DCT) of three transits of Kepler-445c---a supposed super-Earth exoplanet with properties resembling GJ 12…
Long-term, Multiwavelength Light Curves of Ultra-Cool Dwarfs: II. The evolving Light Curves of the T2.5 SIMP 0136 & the Uncorrelated Light Curves of the M9 TVLM 513
Bryce Croll, Philip S. Muirhead, Jack Lichtman +3
We present 17 nights of ground-based, near-infrared photometry of the variable L/T transition brown dwarf SIMP J013656.5+093347 and an additional 3 nights of ground-based photometr…
Long-term, Multiwavelength Light Curves of Ultra-cool Dwarfs: I. An Interplay of Starspots & Clouds Likely Drive the Variability of the L3.5 dwarf 2MASS 0036+18
Bryce Croll, Philip S. Muirhead, Eunkyu Han +5
We present multi-telescope, ground-based, multiwavelength optical and near-infrared photometry of the variable L3.5 ultra-cool dwarf 2MASSW J0036159+182110. We present 22 nights of…
No Timing Variations Observed in Third Transit of Snow-Line Exoplanet Kepler-421b
Paul A. Dalba, Philip S. Muirhead
We observed Kepler-421 during the anticipated third transit of the snow-line exoplanet Kepler-421b in order to constrain the existence and extent of transit timing variations (TTVs…
Transiting Exoplanet Studies and Community Targets for JWST's Early Release Science Program
Kevin B. Stevenson, Nikole K. Lewis, Jacob L. Bean +49
The James Webb Space Telescope will revolutionize transiting exoplanet atmospheric science due to its capability for continuous, long-duration observations and its larger collectin…