activity
20192026
most citedThe Upper Edge of the Neptune Desert Is Stable Against Photoevaporation

82 citations · 446 across the 33 of their papers we have counts for

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Showing 2024Show all

8 papers · 1 filter

astro-ph.EP2024

A Fourth Planet in the Kepler-51 System Revealed by Transit Timing Variations

Kento Masuda, Jessica E. Libby-Roberts, John H. Livingston +49

Kepler-51 is a -old Sun-like star hosting three transiting planets with radii - and orbital periods -$130\,\mathrm{day…

astro-ph.EP2024★ 4 cited

Tidally Heated Sub-Neptunes, Refined Planetary Compositions, and Confirmation of a Third Planet in the TOI-1266 System

Michael Greklek-McKeon, Shreyas Vissapragada, Heather A. Knutson +38

TOI-1266 is a benchmark system of two temperate ( 450 K) sub-Neptune-sized planets orbiting a nearby M dwarf exhibiting a rare inverted architecture with a larger interior plane…

astro-ph.EP2024

An Earth-sized Planet on the Verge of Tidal Disruption

Fei Dai, Andrew W. Howard, Samuel Halverson +95

TOI-6255~b (GJ 4256) is an Earth-sized planet (1.079 ) with an orbital period of only 5.7 hours. With the newly commissioned Keck Planet Finder (KPF) and CARMEN…

astro-ph.EP2024★ 23 cited

TOI-1408: Discovery and Photodynamical Modeling of a Small Inner Companion to a Hot Jupiter Revealed by TTVs

Judith Korth, Priyanka Chaturvedi, Hannu Parviainen +60

We report the discovery and characterization of a small planet, TOI-1408 c, on a 2.2-day orbit located interior to a previously known hot Jupiter, TOI-1408 b ( d, $M=1.86\p…

astro-ph.SR2024

Stellar Models are Reliable at Low Metallicity: An Asteroseismic Age for the Ancient Very Metal-Poor Star KIC 8144907

Daniel Huber, Ditte Slumstrup, Marc Hon +15

Very metal-poor stars ([Fe/H]<-2) are important laboratories for testing stellar models and reconstructing the formation history of our galaxy. Asteroseismology is a powerful tool…

astro-ph.EP2024

Exoplanet Aeronomy: A Case Study of WASP-69b's Variable Thermosphere

W. Garrett Levine, Shreyas Vissapragada, Adina D. Feinstein +5

Aeronomy, the study of Earth's upper atmosphere and its interaction with the local space environment, has long traced changes in the thermospheres of Earth and other solar system p…

astro-ph.EP2024★ 5 cited

Atmospheric Mass Loss from TOI-1259 A b, a Gas Giant Planet With a White Dwarf Companion

Morgan Saidel, Shreyas Vissapragada, Jessica Spake +6

The lack of close-in Neptune-mass exoplanets evident in transit surveys has largely been attributed either to photoevaporative mass loss or high-eccentricity migration. To distingu…

astro-ph.EP2024

Helium in the Extended Atmosphere of the Warm Super-Puff TOI-1420b

Shreyas Vissapragada, Michael Greklek-McKeon, Dion Linssen +11

Super-puffs are planets with exceptionally low densities (~g~cm) and core masses (). Many lower-mass () super-…