Articles by Ryan A. Rubenzahl

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Ryan A. Rubenzahl

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The HD 191939 Exoplanet System is Well-Aligned and Flat

10 September 2024 by Jack Lubin and others

Earth and Planetary Astrophysics

A Testbed for Tidal Migration: the 3D Architecture of an Eccentric Hot Jupiter HD 118203 b Accompanied by a Possibly Aligned Outer Giant Planet

6 September 2024 by Jingwen Zhang and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

The \sim50-Myr-Old TOI-942c is Likely on an Aligned, Coplanar Orbit and Losing Mass

14 August 2024 by Huan-Yu Teng and others

Earth and Planetary Astrophysics

TESS Giants Transiting Giants. VI. Newly Discovered Hot Jupiters Provide Evidence for Efficient Obliquity Damping after the Main Sequence

31 July 2024 by Nicholas Saunders and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

The OATMEAL Survey. I. Low Stellar Obliquity in the Transiting Brown Dwarf System GPX-1

30 July 2024 by Steven Giacalone and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

KPF Confirms a Polar Orbit for KELT-18 b

30 July 2024 by Ryan Rubenzahl and others

Earth and Planetary Astrophysics

Obliquity Constraints for the Extremely Eccentric Sub-Saturn Kepler-1656 b

30 July 2024 by Ryan Rubenzahl and others

Earth and Planetary Astrophysics

An Earth-sized Planet on the Verge of Tidal Disruption

30 July 2024 by Fei Dai and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

The California Legacy Survey V. Chromospheric Activity Cycles in Main Sequence Stars

25 June 2024 by Howard Isaacson and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

The TESS-Keck Survey XXI: 13 New Planets and Homogeneous Properties for 21 Subgiant Systems

12 February 2024 by Ashley Chontos and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

The TESS-Keck Survey. XII. A Dense 1.8 R_\oplus Ultra-Short-Period Planet Possibly Clinging to a High-Mean-Molecular-Weight Atmosphere After the First Gyr

12 February 2024 by Ryan Rubenzahl and others

Earth and Planetary Astrophysics

The TESS-Keck Survey. XVIII. A sub-Neptune and spurious long-period signal in the TOI-1751 system

11 February 2024 by Anmol Desai and others at

UC Berkeley

Earth and Planetary Astrophysics

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

5 February 2024 by Michelle Hill and others

Earth and Planetary Astrophysics

Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. IV. Long-term Doppler Spectroscopy for 11 Stars Thought to Host Cool Giant Exoplanets

5 January 2024 by Paul Dalba and others

Earth and Planetary Astrophysics

The TESS-Keck Survey XVII: Precise Mass Measurements in a Young, High Multiplicity Transiting Planet System using Radial Velocities and Transit Timing Variations

7 December 2023 by Corey Beard and others

Earth and Planetary Astrophysics

Staring at the Sun with the Keck Planet Finder: An Autonomous Solar Calibrator for High Signal-to-Noise Sun-as-a-Star Spectra

9 November 2023 by Ryan Rubenzahl and others at

Caltech

Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics

Identification of the Top TESS Objects of Interest for Atmospheric Characterization of Transiting Exoplanets with JWST

18 August 2023 by Benjamin Hord and others

Earth and Planetary Astrophysics

Overfitting Affects the Reliability of Radial Velocity Mass Estimates of the V1298 Tau Planets

14 July 2023 by Sarah Blunt and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

The TESS-Keck Survey. XVI. Mass Measurements for 12 Planets in Eight Systems

28 June 2023 by Joseph M. Akana Murphy and others

Earth and Planetary Astrophysics

A Mini-Neptune Orbiting the Metal-poor K Dwarf BD+29 2654

13 June 2023 by Fei Dai and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

The TESS-Keck Survey. XV. Precise Properties of 108 TESS Planets and Their Host Stars

1 June 2023 by Mason Macdougall and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

TESS-Keck Survey XIV: Two giant exoplanets from the Distant Giants Survey

5 December 2022 by Judah E. Van Zandt and others

Earth and Planetary Astrophysics

TOI-1136 is a Young, Coplanar, Aligned Planetary System in a Pristine Resonant Chain

15 November 2022 by Fei Dai and others

Earth and Planetary Astrophysics

The TESS-Keck Survey. XIII. An Eccentric Hot Neptune with a Similar-Mass Outer Companion around TOI-1272

28 June 2022 by Mason Macdougall and others

Earth and Planetary Astrophysics

The TESS-Keck Survey. XI. Mass Measurements for Four Transiting sub-Neptunes orbiting K dwarf TOI-1246

25 April 2022 by Emma Turtelboom and others

Earth and Planetary Astrophysics

Into the Depths: a new activity metric for high-precision radial velocity measurements based on line depth variations

12 April 2022 by Jared Siegel and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

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

11 January 2022 by Paul Dalba and others

Earth and Planetary Astrophysics

TKS V. Twin sub-Neptunes Transiting the Nearby G Star HD 63935

5 January 2022 by Nicholas Scarsdale and others

Earth and Planetary Astrophysics

TESS-Keck Survey IX: Masses of Three Sub-Neptunes Orbiting HD 191939 and the Discovery of a Warm Jovian Plus a Distant Sub-Stellar Companion

4 January 2022 by Jack Lubin and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

TOI 560 : Two Transiting Planets Orbiting a K Dwarf Validated with iSHELL, PFS and HIRES RVs

29 December 2021 by Mohammed Mufti and others

Earth and Planetary Astrophysics

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Earth and Planetary Astrophysics Solar and Stellar Astrophysics Instrumentation and Methods for Astrophysics Astrophysics of Galaxies