43 citations · 100 across the 5 of their papers we have counts for
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Possible in situ formation of Uranus and Neptune via Pebble Accretion
Claudio Valletta, Ravit Helled
The origin of Uranus and Neptune is still unknown. In particular, it has been challenging for planet formation models to form the planets in their current radial distances within t…
A low accretion efficiency of planetesimals formed at planetary gap edges
Linn E. J. Eriksson, Thomas Ronnet, Anders Johansen +3
Observations and models of giant planets indicate that such objects are enriched in heavy elements compared to solar abundances. The prevailing view is that giant planets accreted…
An Approximation for the Capture Radius of Gaseous Protoplanets
Claudio Valletta, Ravit Helled
Determining the heavy-element accretion rate of growing giant planets is crucial for understanding their formation and bulk composition. The solid (heavy-element) accretion rate sh…
Giant planet formation models with a self-consistent treatment of the heavy elements
Claudio Valletta, Ravit Helled
We present a new numerical framework to model the formation and evolution of giant planets. The code is based on the further development of the stellar evolution toolkit Modules fo…
The distribution of heavy-elements in giant protoplanetary atmospheres: the importance of planetesimal-envelope interactions
Claudio Valletta, Ravit Helled
In the standard model for giant planet formation, the planetary growth begins with accretion of solids followed by a buildup of a gaseous atmosphere as more solids are accreted, an…