10 papers
Gaps and Rings: A Near-Universal Trait of Extended Protoplanetary Discs
Quincy Bosschaart, Osmar M. Guerra-Alvarado, Nienke van der Marel +1
Substructures such as rings, gaps, and cavities are commonly observed in protoplanetary discs and are thought to play a key role in dust evolution and planet formation. However, a…
The Radius Cliff is a Waterfall: Explaining Sub-Neptune Exoplanets with Steam Worlds
Aritra Chakrabarty, Gijs D. Mulders, Artyom Aguichine +1
The demographics of Kepler planets provide a key testbed for models of planet formation and evolution, particularly for explaining the radius valley separating super-Earths and sub…
Are We There Yet? Challenges in Quantifying the Frequency of Earth Analogs in the Habitable Zone
Rachel B. Fernandes, Samson Johnson, Galen J. Bergsten +43
Searching for life elsewhere in the universe is one of the most highly prioritized pursuits in astronomy today. However, the ability to observe evidence of Earth-like life through…
Why Estimating is Difficult: A Kepler-Centric Perspective
Steve Bryson, Michelle Kunimoto, Ruslan Belikov +13
, the occurrence rate of rocky habitable zone exoplanets orbiting Sun-like stars, is of great interest to both the astronomical community and the general public. The K…
New migration patterns in high planet-star mass ratio systems in disks with low viscosity
Mariana Sánchez, Sijme-Jan Paardekooper, Nienke van der Marel +2
Migration of giant planets remains a complex topic. While significant progress has been made for high-viscosity disks, the migration of planets with large planet-star mass ratios i…
Diversity in planetary architectures from pebble accretion: Water delivery to the habitable zone with pebble snow
Sean McCloat, Gijs Mulders, Sherry Fieber-Beyer
"Pebble snow" describes a planet formation mechanism where icy pebbles in the outer disk reach inner planet embryos as the water ice line evolves inward. We model the effects pebbl…