Articles by Alex S. Polanski

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Alex S. Polanski

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OrCAS: Origins, Compositions, and Atmospheres of Sub-neptunes. I. Survey Definition

6 days ago by Ian J. M. Crossfield and others

Earth and Planetary Astrophysics

The Compositions of Rocky Planets in Close-in Orbits Tend to be Earth-Like

30 September 2024 by Casey Brinkman and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

Revisiting the Relationship Between Rocky Exoplanet and Stellar Compositions: Reduced Evidence for a Super-Mercury Population

12 September 2024 by Casey Brinkman and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

The TESS-Keck Survey. XXII. A sub-Neptune Orbiting TOI-1437

14 August 2024 by Daria Pidhorodetska and others

Earth and Planetary 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

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 XX: 15 New TESS Planets and a Uniform RV Analysis of all Survey Targets

24 May 2024 by Alex Polanski and others

Earth and Planetary Astrophysics

Planet Hunters TESS V: a planetary system around a binary star, including a mini-Neptune in the habitable zone

29 April 2024 by Nora Eisner and others

Earth and Planetary Astrophysics

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

15 April 2024 by Stephen Kane and others

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

The Kepler Giant Planet Search. I: A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory

5 January 2024 by Lauren Weiss and others

Earth and Planetary Astrophysics, Solar and Stellar 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

Investigating the Atmospheric Mass Loss of the Kepler-105 Planets Straddling the Radius Gap

6 December 2023 by Aaron Householder and others at

UC Berkeley

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

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

TOI-561 b: A Low Density Ultra-Short Period "Rocky" Planet around a Metal-Poor Star

19 December 2022 by Casey Brinkman 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

A Mirage or an Oasis? Water Vapor in the Atmosphere of the Warm Neptune TOI-674 b

24 August 2022 by Jonathan Brande and others

Earth and Planetary Astrophysics

GJ 1252b: A Hot Terrestrial Super-Earth With No Atmosphere

19 August 2022 by Ian J. M. Crossfield and others

Earth and Planetary Astrophysics

Chemical Abundances for 25 JWST Exoplanet Host Stars with KeckSpec

27 July 2022 by Alex Polanski and others

Earth and Planetary Astrophysics, Solar and Stellar 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

Validation of 13 Hot and Potentially Terrestrial TESS Planets

11 February 2022 by Steven Giacalone and others

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

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