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A resonant chain of four transiting, sub-Neptune planets
Sean M. Mills, Daniel C. Fabrycky, Cezary Migaszewski +3
Surveys have revealed many multi-planet systems containing super-Earths and Neptunes in orbits of a few days to a few months. There is debate whether in situ assembly or inward mig…
Mass Constraints of the WASP-47 Planetary System from Radial Velocities
Evan Sinukoff, Andrew W. Howard, Erik A. Petigura +19
We report precise radial velocity (RV) measurements of WASP-47, a G star that hosts three transiting planets in close proximity (a hot Jupiter, a super-Earth and a Neptune-sized pl…
A Transient Transit Signature Associated with the Young Star RIK-210
Trevor J. David, Erik A. Petigura, Lynne A. Hillenbrand +14
We find transient, transit-like dimming events within the K2 time series photometry of the young star RIK-210 in the Upper Scorpius OB association. These dimming events are variabl…
Mass and Eccentricity Constraints in the WASP-47 Planetary System from a Simultaneous Analysis of Radial Velocities & Transit Timing Variations
Lauren M. Weiss, Katherine Deck, Evan Sinukoff +9
Measuring precise planet masses, densities, and orbital dynamics in individual planetary systems is an important pathway toward understanding planet formation. The WASP-47 system h…
Evidence for the Direct Detection of the Thermal Spectrum of the Non-Transiting Hot Gas Giant HD 88133 b
Danielle Piskorz, Bjorn Benneke, Nathan R. Crockett +10
We target the thermal emission spectrum of the non-transiting gas giant HD 88133 b with high-resolution near-infrared spectroscopy, by treating the planet and its host star as a sp…
The Orbit and Mass of the Third Planet in the Kepler-56 System
Oderah Justin Otor, Benjamin T. Montet, John Asher Johnson +20
While the vast majority of multiple-planet systems have their orbital angular momentum axes aligned with the spin axis of their host star, Kepler-56 is an exception: its two transi…