activity
20192025
most citedDetection of Planetary and Stellar Companions to Neighboring Stars via a Combination of Radial Velocity and Direct Imaging Techniques

41 citations · 255 across the 26 of their papers we have counts for

collaborators

26 papers

astro-ph.EP2025

Radial Velocity Strategies for the Orbital Refinement of Exoplanet Direct Imaging Targets

Zhexing Li, Stephen R. Kane, Sarah Blunt +1

Many potential direct imaging candidates suffer from large orbital period uncertainties, leading to challenges in accurate predictions of future orbital positions and imprecise dir…

astro-ph.EP2025

No Giant Planets in the Eta Cassiopeiae System: Dynamical Implications of a Wide Binary Companion

Stephen R. Kane, Zhexing Li, Michelle L. Hill +3

Given the vast number of stars that exist within binary systems, it remains important to explore the effect of binary star environments on the formation and evolution of exoplaneta…

astro-ph.EP2025

Optimising Radial Velocity Detection Limits for Southern Habitable Worlds Observatory Targets

Robert A. Wittenmyer, Adriana Errico, Timothy R. Holt +5

The planned NASA Habitable Worlds Observatory (HWO) flagship mission aims to image and spectroscopically characterise 25 Earth-size planets in the habitable zones of their stars. H…

astro-ph.IM2024★ 6 cited

The Roman coronagraph community participation program: observation planning

Schuyler G. Wolff, Jason Wang, Karl Stapelfeldt +18

The Coronagraphic Instrument onboard the Nancy Grace Roman Space Telescope is an important stepping stone towards the characterization of habitable, rocky exoplanets. In a technolo…

astro-ph.EP2024★ 1 cited

SPORES-HWO. II. Companion Mass Limits and Updated Planet Properties for 120 Future Exoplanet Imaging Targets from 35 yr of Precise Doppler Monitoring

Caleb K. Harada, Courtney D. Dressing, Emma V. Turtelboom +17

A goal of the future Habitable Worlds Observatory (HWO) is to directly image and spectroscopically characterize true Earth-analogs. However, if a large fraction of HWO target stars…

astro-ph.EP2024

Dynamical Viability Assessment for Habitable Worlds Observatory Targets

Stephen R. Kane, Zhexing Li, Margaret C. Turnbull +2

Exoplanetary science is increasingly prioritizing efforts toward direct imaging of planetary systems, with emphasis on those that may enable the detection and characterization of p…

astro-ph.EP2024

A Perfect Tidal Storm: HD 104067 Planetary Architecture Creating an Incandescent World

Stephen R. Kane, Tara Fetherolf, Zhexing Li +5

The discovery of planetary systems beyond the solar system has revealed a diversity of architectures, most of which differ significantly from our system. The initial detection of a…

astro-ph.EP2024★ 1 cited

The TESS-Keck Survey. XIX. A Warm Transiting Sub-Saturn Mass Planet and a non-Transiting Saturn Mass Planet Orbiting a Solar Analog

Michelle L. Hill, Stephen R. Kane, Paul A. Dalba +45

The Transiting Exoplanet Survey Satellite (TESS) continues to dramatically increase the number of known transiting exoplanets, and is optimal for monitoring bright stars amenable t…

astro-ph.EP2024

Revised Architecture and Two New Super-Earths in the HD 134606 Planetary System

Zhexing Li, Stephen R. Kane, Timothy D. Brandt +15

Multi-planet systems exhibit a diversity of architectures that diverge from the solar system and contribute to the topic of exoplanet demographics. Radial velocity (RV) surveys for…

astro-ph.EP2023

Dynamical Interactions and Mass Loss Within the Uranian System

Stephen R. Kane, Zhexing Li

The origin and evolution of planetary rings and moons remains an active area of study, particularly as they relate to the impact history and volatile inventory of the outer solar s…

astro-ph.EP2023★ 34 cited

Doppler Constraints on Planetary Companions to Nearby Sun-like Stars: An Archival Radial Velocity Survey of Southern Targets for Proposed NASA Direct Imaging Missions

Katherine Laliotis, Jennifer A. Burt, Eric E. Mamajek +22

Directly imaging temperate rocky planets orbiting nearby, Sun-like stars with a 6-m-class IR/O/UV space telescope, recently dubbed the Habitable Worlds Observatory, is a high prior…

astro-ph.EP2023★ 31 cited

The Demographics of Terrestrial Planets in the Venus Zone

Colby Ostberg, Stephen R. Kane, Zhexing Li +7

Understanding the physical characteristics of Venus, including its atmosphere, interior, and its evolutionary pathway with respect to Earth, remains a vital component for terrestri…

astro-ph.EP2022

A Catalog of Habitable Zone Exoplanets

Michelle L. Hill, Kimberly Bott, Paul A. Dalba +5

The search for habitable planets has revealed many planets that can vary greatly from an Earth analog environment. These include highly eccentric orbits, giant planets, different b…

astro-ph.EP2022★ 4 cited

New Dynamical State and Habitability of the HD 45364 Planetary System

Zhexing Li, Stephen R. Kane, Paul A. Dalba +2

Planetary systems with multiple giant planets provide important opportunities to study planetary formation and evolution. The HD 45364 system hosts two giant planets that reside wi…

astro-ph.EP2022★ 2 cited

The Dynamical Viability of an Extended Jupiter Ring System

Stephen R. Kane, Zhexing Li

Planetary rings are often speculated as being a relatively common attribute of giant planets, partly based on their prevalence within the Solar System. However, their formation and…

astro-ph.EP2022★ 9 cited

HD 83443c: A highly eccentric giant planet on a 22-year orbit

Adriana Errico, Robert A. Wittenmyer, Jonathan Horner +19

We report the discovery of a highly eccentric long-period Jovian planet orbiting the hot-Jupiter host HD\,83443. By combining radial velocity data from four instruments (AAT/UCLES,…

astro-ph.EP2022

Revisiting BD-06 1339b: A Likely False Positive Caused by Stellar Activity

Emilie Simpson, Tara Fetherolf, Stephen R. Kane +3

As long as astronomers have searched for exoplanets, the intrinsic variability of host stars has interfered with the ability to reliably detect and confirm exoplanets. One particul…

astro-ph.EP2022★ 39 cited

The TESS-Keck Survey. VIII. Confirmation of a Transiting Giant Planet on an Eccentric 261 day Orbit with the Automated Planet Finder Telescope

Paul A. Dalba, Stephen R. Kane, Diana Dragomir +72

We report the discovery of TOI-2180 b, a 2.8 giant planet orbiting a slightly evolved G5 host star. This planet transited only once in Cycle 2 of the primary Transiting…

astro-ph.EP2021

Asteroseismology of iota Draconis and Discovery of an Additional Long-Period Companion

Michelle L. Hill, Stephen R. Kane, Tiago L. Campante +25

Giant stars as known exoplanet hosts are relatively rare due to the potential challenges in acquiring precision radial velocities and the small predicted transit depths. However, t…

astro-ph.EP2021★ 16 cited

Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. II. Discovery of a Failed Hot Jupiter on a 2.7 Year, Highly Eccentric Orbit

Paul A. Dalba, Stephen R. Kane, Zhexing Li +13

Radial velocity (RV) surveys have discovered giant exoplanets on au-scale orbits with a broad distribution of eccentricities. Those with the most eccentric orbits are valuable labo…

astro-ph.EP2021★ 1 cited

A Community Exoplanet Imaging Data Challenge for Roman CGI and Starshade Rendezvous

Margaret C. Turnbull, Neil Zimmerman, Julien H. Girard +8

Operating in an unprecedented contrast regime ( to ), the Roman Coronagraph Instrument (CGI) will serve as a pathfinder for key technologies needed for future Ear…

astro-ph.EP2021★ 16 cited

Direct Imaging of Exoplanets Beyond the Radial Velocity Limit: Application to the HD 134987 System

Zhexing Li, Sergi R. Hildebrandt, Stephen R. Kane +4

Future direct imaging missions will primarily observe planets that have been previously detected, mostly via the radial velocity (RV) technique, to characterize planetary atmospher…

astro-ph.EP2020★ 15 cited

Speckle Imaging Characterization of Radial Velocity Exoplanet Systems

Paul A. Dalba, Stephen R. Kane, Steve B. Howell +10

We conducted speckle imaging observations of 53 stellar systems that were members of long-term radial velocity (RV) monitoring campaigns and exhibited substantial accelerations ind…

astro-ph.EP2020★ 30 cited

Eccentricity Driven Climate Effects in the Kepler-1649 System

Stephen R. Kane, Zhexing Li, Eric T. Wolf +2

The discovery of terrestrial exoplanets is uncovering increasingly diverse architectures. Of particular interest are those systems that contain exoplanets at a variety of star-plan…