activity
20142025
most citedUnderstanding the Impacts of Stellar Companions on Planet Formation and Evolution: A Survey of Stellar and Planetary Companions within 25 pc

81 citations · 933 across the 43 of their papers we have counts for

collaborators

43 papers

astro-ph.EP2025

Planet Masses, Radii, and Orbits from NASA's K2 Mission

Andrew W. Howard, Evan Sinukoff, Sarah Blunt +50

We report the masses, sizes, and orbital properties of 86 planets orbiting 55 stars observed by NASA's K2 Mission with follow-up Doppler measurements by the HIRES spectrometer at t…

astro-ph.EP2025

The TESS-Keck Survey XXIV: Outer Giants may be More Prevalent in the Presence of Inner Small Planets

Judah Van Zandt, Erik A. Petigura, Jack Lubin +38

We present the results of the Distant Giants Survey, a three-year radial velocity (RV) campaign to search for wide-separation giant planets orbiting Sun-like stars known to host an…

astro-ph.EP2024★ 53 cited

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

Alex S. Polanski, Jack Lubin, Corey beard +69

The Transiting Exoplanet Survey Satellite (TESS) has discovered hundreds of new worlds, with TESS planet candidates now outnumbering the total number of confirmed planets from $\te…

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.EP2023

The California Legacy Survey IV. Lonely, Poor, and Eccentric: A Comparison Between Solitary and Neighborly Gas Giants

Lee J. Rosenthal, Andrew W. Howard, Heather A. Knutson +1

We compare systems with single giant planets to systems with multiple giant planets using a catalog of planets from a high-precision radial velocity survey of FGKM stars. Our compa…

astro-ph.EP2023★ 1 cited

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

Benjamin J. Hord, Eliza M. -R. Kempton, Thomas Mikal-Evans +142

JWST has ushered in an era of unprecedented ability to characterize exoplanetary atmospheres. While there are over 5,000 confirmed planets, more than 4,000 TESS planet candidates a…

astro-ph.EP2023

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

Joseph M. Akana Murphy, Natalie M. Batalha, Nicholas Scarsdale +44

With JWST's successful deployment and unexpectedly high fuel reserves, measuring the masses of sub-Neptunes transiting bright, nearby stars will soon become the bottleneck for char…

astro-ph.EP2023★ 22 cited

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

Mason G. MacDougall, Erik A. Petigura, Gregory J. Gilbert +38

We present the stellar and planetary properties for 85 TESS Objects of Interest (TOIs) hosting 108 planet candidates which comprise the TESS-Keck Survey (TKS) sample. We combine ph…

astro-ph.IM2023

Enabling Exoplanet Demographics Studies with Standardized Exoplanet Survey Meta-Data

Prepared by the ExoPAG Science Interest Group, 2 on Exoplanet Demographics, Jessie L. Christiansen +18

Goal 1 of the National Academies of Science, Engineering and Mathematics Exoplanet Science Strategy is "to understand the formation and evolution of planetary systems as products o…

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★ 57 cited

Detecting exomoons from radial velocity measurements of self-luminous planets: application to observations of HR 7672 B and future prospects

Jean-Baptiste Ruffio, Katelyn Horstman, Dimitri Mawet +36

The detection of satellites around extrasolar planets, so called exomoons, remains a largely unexplored territory. In this work, we study the potential of detecting these elusive o…

astro-ph.EP2022★ 15 cited

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

Judah E. Van Zandt, Erik A. Petigura, Mason MacDougall +42

We present the Distant Giants Survey, a three-year radial velocity (RV) campaign to measure P(DG|CS), the conditional occurrence of distant giant planets (DG; M_p ~ 0.3 - 13 M_J, P…

astro-ph.EP2022★ 7 cited

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

Mason G. MacDougall, Erik A. Petigura, Tara Fetherolf +58

We report the discovery of an eccentric hot Neptune and a non-transiting outer planet around TOI-1272. We identified the eccentricity of the inner planet, with an orbital period of…

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★ 1 cited

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

Mohammed El Mufti, Peter P. Plavchan, Howard Isaacson +92

We validate the presence of a two-planet system orbiting the 0.15--1.4 Gyr K4 dwarf TOI 560 (HD 73583). The system consists of an inner moderately eccentric transiting mini-Neptune…

astro-ph.EP2021

The California Legacy Survey III. On The Shoulders of (Some) Giants: The Relationship between Inner Small Planets and Outer Massive Planets

Lee J. Rosenthal, Heather A. Knutson, Yayaati Chachan +11

We use a high-precision radial velocity survey of FGKM stars to study the conditional occurrence of two classes of planets: close-in small planets (0.023--1 au, 2--30 Earth masses)…

astro-ph.EP2021★ 17 cited

HD207897 b: A dense sub-Neptune transiting a nearby and bright K-type star

N. Heidari, I. Boisse, J. Orell-Mique +90

We present the discovery and characterization of a transiting sub-Neptune orbiting with a 16.20 day period around a nearby (28 pc) and bright(V=8.37) K0V star HD207897 (TOI-1611).…

astro-ph.EP2021★ 16 cited

The TESS-Keck Survey. VI. Two Eccentric sub-Neptunes Orbiting HIP-97166

Mason G. MacDougall, Erik A. Petigura, Isabel Angelo +45

We report the discovery of HIP-97166b (TOI-1255b), a transiting sub-Neptune on a 10.3-day orbit around a K0 dwarf 68 pc from Earth. This planet was identified in a systematic searc…

astro-ph.EP2021★ 13 cited

Another super-dense sub-Neptune in K2-182 b and refined mass measurements for K2-199 b and c

Joseph M. Akana Murphy, Molly R. Kosiarek, Natalie M. Batalha +10

We combine multiple campaigns of K2 photometry with precision radial velocity measurements from Keck-HIRES to measure the masses of three sub-Neptune-size planets. We confirm the p…

astro-ph.EP2021★ 17 cited

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

Nicholas Scarsdale, Joseph M. Akana Murphy, Natalie M. Batalha +56

We present the discovery of two nearly identically-sized sub-Neptune transiting planets orbiting HD 63935, a bright ( mag), sun-like () star at 49 pc. TESS id…

astro-ph.EP2021★ 37 cited

Constraining the Orbit and Mass of epsilon Eridani b with Radial Velocities, Hipparcos IAD-Gaia DR2 Astrometry, and Multi-epoch Vortex Coronagraphy Upper Limits

Jorge Llop-Sayson, Jason J. Wang, Jean-Baptiste Ruffio +30

~Eridani is a young planetary system hosting a complex multi-belt debris disk and a confirmed Jupiter-like planet orbiting at 3.48 AU from its host star. Its age and architectur…

astro-ph.EP2021★ 1 cited

The California Legacy Survey I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades

Lee J. Rosenthal, Benjamin J. Fulton, Lea A. Hirsch +20

We present a high-precision radial velocity (RV) survey of 719 FGKM stars, which host 164 known exoplanets and 14 newly discovered or revised exoplanets and substellar companions.…

astro-ph.EP2021★ 13 cited

Confirmation of the Long-Period Planet Orbiting Gliese 411 and the Detection of a New Planet Candidate

Spencer A. Hurt, Benjamin Fulton, Howard Isaacson +4

We perform a detailed characterization of the planetary system orbiting the bright, nearby M dwarf Gliese 411 using radial velocities gathered by APF, HIRES, SOPHIE, and CARMENES.…

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…