activity
20172025
most citedKepler Multi-Planet Systems Exhibit Unexpected Intra-system Uniformity in Mass and Radius

171 citations · 579 across the 13 of their papers we have counts for

collaborators

16 papers

astro-ph.EP2021

Split Peas in a Pod: Intra-System Uniformity of Super-Earths and Sub-Neptunes

Sarah C. Millholland, Joshua N. Winn

The planets within compact multi-planet systems tend to have similar sizes, masses, and orbital period ratios, like "peas in a pod". This pattern was detected when considering plan…

astro-ph.EP20212 cited

Evidence for a Non-Dichotomous Solution to the Kepler Dichotomy: Mutual Inclinations of Kepler Planetary Systems from Transit Duration Variations

Sarah C. Millholland, Matthias Y. He, Eric B. Ford +3

Early analyses of exoplanet statistics from the Kepler Mission revealed that a model population of multiple-planet systems with low mutual inclinations (

astro-ph.EP202070 cited

Formation of Ultra-Short-Period Planets by Obliquity-Driven Tidal Runaway

Sarah Millholland, Christopher Spalding

Small, rocky planets have been found orbiting in extreme proximity to their host stars, sometimes down to only stellar radii. These ultra-short-period planets (USPs) likel…

astro-ph.EP202027 cited

Stellar Oblateness versus Distant Giants in Exciting Kepler Planet Mutual Inclinations

Christopher Spalding, Sarah Millholland

An overabundance of single-transiting Kepler planets suggests the existence of a sub-population of intrinsically multi-planet systems possessing large mutual inclinations. However,…

astro-ph.EP202057 cited

Tidal Inflation Reconciles Low-Density Sub-Saturns with Core Accretion

Sarah Millholland, Erik Petigura, Konstantin Batygin

While the Solar System contains no planets between the sizes of Uranus and Saturn, our current exoplanet census includes several dozen such planets with well-measured masses and ra…

astro-ph.EP2020

Obliquity Constraints on an Extrasolar Planetary-Mass Companion

Marta L. Bryan, Eugene Chiang, Brendan P. Bowler +8

We place the first constraints on the obliquity of a planetary-mass companion (PMC) outside of the Solar System. Our target is the directly imaged system 2MASS J01225093-2439505 (2…