7 citations · 24 across the 10 of their papers we have counts for
10 papers
Beyond Pebble Isolation: Diverse Pathways to Giant Planet Formation Across Stellar and Orbital Scales
Lorenzo Peerani, Sho Shibata, Ravit Helled
Context. Giant planet formation requires reaching crossover mass, i.e., when the mass of the gaseous envelope becomes equal to the mass of the core, within the disc's lifetime. The…
The metallicity of giant exoplanets around low-mass stars and how Ariel can help
Ravit Helled, Sho Shibata, Shubham Kanodia +1
Giant planets orbiting low-mass stars represent a unique population of giant planets that can be studied to constrain planet formation theory. Surveys of transiting giant exoplanet…
Elevated Eccentricities in the Radius Valley Hint at Water-Rich Mini-Neptunes
Sho Shibata, Andre Izidoro
While recent planet-formation models broadly reproduce the observed population of super-Earths and mini-Neptunes, as well as the bimodal radius distribution (the ``radius valley'')…
The Role of Magnetospheric Rebound in Breaking Resonant Chains of Super-Earths and Mini-Neptunes
Mengrui Pan, Andre Izidoro, Sho Shibata
Stellar magnetic fields are thought to truncate the inner regions of protoplanetary disks around T Tauri stars, creating a magnetospheric cavity near the star. As the disk evolves…
Giant planet formation via pebble accretion across different stellar masses
Sho Shibata, Ravit Helled
The occurrence rate of cold Jupiters was found to depend on stellar mass. The formation environment in the protoplanetary disks regulates core formation and the subsequent gas accr…
A tale of dynamical instabilities and giant impacts in the radius valley
Sho Shibata, Andre Izidoro
The size distribution of planets with radii between 1 and peaks near 1.4 and , with a dip around -- the so-called "radius valley." Recent s…
On the origin of Jupiter's fuzzy core: constraints from N-body, impact and evolution simulations
Thomas Meier, Christian Reinhardt, Sho Shibata +3
It has been suggested that Jupiter's fuzzy core could be a result of a giant impact. Here, we investigate the expected impact conditions from N-body simulations. We then use state-…
Formation of super-Earths and mini-Neptunes from rings of planetesimals
Sho Shibata, Andre Izidoro
The solar system planetary architecture has been proposed to be consistent with the terrestrial and giant planets forming from material rings at ~1 au and ~5 au, respectively. Here…
Fate of a remnant solid disk around an eccentric giant planet
S. Shibata, R. Helled
The composition of giant planets' atmospheres is an important tracer of their formation history. While many theoretical studies investigate the heavy-element accretion within a gas…
Can Uranus and Neptune form concurrently via pebble, gas and planetesimal accretion?
Linn E. J. Eriksson, Marit A. S. Mol Lous, Sho Shibata +1
The origin of Uranus and Neptune has long been challenging to explain, due to the large orbital distances from the Sun. After a planetary embryo has been formed, the main accretion…