8 citations · 14 across the 10 of their papers we have counts for
11 papers
Exomoonlight Sonata: On the Fate of Exomoons Around Migrating White Dwarf Planets
Ritvik Sai Narayan, Joseph R. Livesey, Juliette Becker
The survival of exomoons around close-in white dwarf planets offers a potential constraint on their migration histories and an alternative pathway to post-main-sequence habitabilit…
Discovery and Characterization of the TOI-4468 Planetary System: A Transiting Hot Jupiter With a Lone Nearby Outer Companion
Joseph R. Livesey, Benjamin J. Hord, Juliette Becker +28
We report the discovery of two planets, a hot Jupiter and a nearby outer sub-Neptune, orbiting the star TOI-4468. This system is unique among the current exoplanet census in that i…
GJ 523b is a Massive, 170 Myr-old Mega-Earth, Likely on a Polar Orbit
Maxwell A. Kroft, Thomas G. Beatty, Joseph M. Salzer +18
We use WIYN/NEID radial velocity measurements to confirm the planetary nature and measure the mass of the TESS transiting exoplanet candidate around the mid-K dwarf GJ 523 ($V=9.23…
THYME XIII: Two young Neptunes orbiting a 75-Myr star in the Alpha Persei Cluster
Anne Dattilo, Andrew M. Vanderburg, Madyson G. Barber +28
Young planets with mass measurements are particularly valuable in studying atmospheric mass-loss processes, but these planets are rare and their masses difficult to measure due to…
Tides Tighten the Hycean Habitable Zone
Joseph R. Livesey, Juliette Becker, Susanna L. Widicus Weaver
Hycean planets -- exoplanets with substantial water ice layers, deep surface oceans, and hydrogen-rich atmospheres -- are thought to be favorable environments for life. Due to a re…
The Effects of Kinematic MHD on the Atmospheric Circulation of Eccentric Hot Jupiters
Hayley Beltz, Willow Houck, Laura C. Mayorga +3
Hot Jupiters are typically considered to be tidally locked due to their short orbital periods. The extreme irradiation can result in atmospheric species becoming thermally ionized…
A Pair of Dynamically Interacting Sub-Neptunes Around TOI-6054
Maxwell A. Kroft, Thomas G. Beatty, Ian J. M. Crossfield +31
We confirm the planetary nature of a pair of transiting sub-Neptune exoplanets orbiting the bright F-type sub-giant star TOI-6054 (, ) as a part of the OrCAS radia…
Secular Perturbations from Exterior Giants Strongly Influence Gap Complexity in Peas-in-a-Pod Exoplanetary Systems
Joseph R. Livesey, Juliette Becker
It has been demonstrated that systems of tightly packed inner planets with giant exterior companions tend to have less regular orbital spacings than those without such companions.…
History and Habitability of the LP 890-9 Planetary System
Rory Barnes, Laura N. R. do Amaral, Jessica Birky +42
We present numerous aspects of the evolution of the LP 890-9 (SPECULOOS-2/TOI-4306) planetary system, focusing on the likelihood that planet c can support life. We find that the ho…
The Fate of Oceans on First-Generation Planets Orbiting White Dwarfs
Juliette Becker, Andrew Vanderburg, Joseph Livesey
Several groups have recently suggested that small planets orbiting very closely around white dwarf stars could be promising locations for life to arise, even after stellar death. T…
Orbital Stability and Secular Dynamics of the Proxima Centauri Planetary System
Joseph R. Livesey, Rory Barnes, Russell Deitrick
The two innermost planets of the Proxima Centauri system are separated by just 0.02 au, inducing strong gravitational interactions between them. We assess this interaction by lever…