activity
20092026
most citedThe California-Kepler Survey. III. A Gap in the Radius Distribution of Small Planets

1.5k citations · 13.7k across the 211 of their papers we have counts for

collaborators

215 papers

astro-ph.EP2026

Does HD 3167 Have Planets with Perpendicular Orbits?

Joshua N. Winn, Jack Lubin, Guðmundur Stefánsson +5

The two transiting planets of HD 3167 were reported to follow nearly perpendicular paths, with the inner orbit aligned with the stellar equator and the outer orbit nearly polar. Th…

astro-ph.SR2026

Predicting Macroturbulence in F/G/K Dwarfs to 100 m/s Precision

Jack Lubin, Erik Petigura, Kento Masuda +6

We leverage the high resolution and spectral stability of the Keck Planet Finder (KPF) spectrograph to investigate macroturbulence broadening via the stellar cross-correlation func…

astro-ph.EP2026

POSEIDON III: The Aligned Orbit of the Hot Neptune Around the Hot Star WASP-195

Juan I. Espinoza-Retamal, Joshua N. Winn, Rafael Brahm +33

Stellar obliquities provide important clues as to the formation and migration histories of planetary systems, but measurements remain scarce for Neptune-mass planets, especially th…

astro-ph.EP2026

Spin-Orbit Alignment of Two Neptune-size Planets Younger than 500 Myr: TOI-560 b and TOI-5082 b

Elina Y. Zhang, Fei Dai, Andrew W. Howard +25

Stellar obliquity measurements provide a direct probe of planetary system dynamics, but remain sparse for Neptune-size planets, particularly at young ages. We present Rossiter-McLa…

astro-ph.EP2026★ 1 cited

Photochemical CS Gas Detected on a 20-Myr-old Exoplanet

Fei Dai, Erik Petigura, John Livingston +6

Probing the atmospheres of young exoplanets offers a powerful window into how planetary systems evolve and the physical and chemical processes that drive those early evolutions. We…

astro-ph.EP2026

An Outer Giant Planet or Brown Dwarf in the 51 Pegasi System?

Marvin Morgan, Brendan P. Bowler, Kyle Franson +15

51 Pegasi harbors the first confirmed extrasolar planet orbiting a Sun-like star. Decades of continued radial velocity (RV) observations have since uncovered signatures of an addit…