activity
20182026
most citedHints for a Turnover at the Snow Line in the Giant Planet Occurrence Rate

266 citations · 307 across the 7 of their papers we have counts for

collaborators

15 papers

astro-ph.GA2026

An Updated SynthPop Model for Microlensing Simulations I: Model Description & Evaluation

Macy J. Huston, Alison L. Crisp, Marz Newman +21

The optimization and interpretation of microlensing surveys depends on having an accurate model of the Milky Way. However, existing population synthesis Galactic modeling tools oft…

astro-ph.EP2023

Scaling K2 VII: Evidence for a high occurrence rate of hot sub-Neptunes at intermediate ages

Jessie L. Christiansen, Jon K. Zink, Kevin K. Hardegree-Ullman +6

The NASA K2 mission obtained high precision time-series photometry for four young clusters, including the near-twin 600-800 Myr-old Praesepe and Hyades clusters. Hot sub-Neptunes a…

astro-ph.EP20231 cited

No Evidence for More Earth-sized Planets in the Habitable Zone of Kepler's M versus FGK Stars

Galen J. Bergsten, Ilaria Pascucci, Kevin K. Hardegree-Ullman +3

Reliable detections of Earth-sized planets in the habitable zone remain elusive in the Kepler sample, even for M dwarfs. The Kepler sample was once thought to contain a considerabl…

astro-ph.EP2023

Using Photometrically-Derived Properties of Young Stars to Refine TESS's Transiting Young Planet Survey Completeness

Rachel B. Fernandes, Kevin K. Hardegree-Ullman, Ilaria Pascucci +7

The demographics of young exoplanets can shed light onto their formation and evolution processes. Exoplanet properties are derived from the properties of their host stars. As such,…

astro-ph.EP202323 cited

Two Warm Neptunes transiting HIP 9618 revealed by TESS & Cheops

Hugh P. Osborn, Grzegorz Nowak, Guillaume Hébrard +126

HIP 9618 (HD 12572, TOI-1471, TIC 306263608) is a bright ( mag) solar analogue. TESS photometry revealed the star to have two candidate planets with radii of

astro-ph.EP202340 cited

Scaling K2. VI. Reduced Small Planet Occurrence in High Galactic Amplitude Stars

Jon K. Zink, Kevin K. Hardegree-Ullman, Jessie L. Christiansen +13

In this study, we performed a homogeneous analysis of the planets around FGK dwarf stars observed by the Kepler and K2 missions, providing spectroscopic parameters for 310 K2 targe…