Water delivery to dry protoplanets by hit-and-run collisions

Abstract

Final water inventories of newly formed terrestrial planets are shaped by their collision history. A setting where volatiles are transported from beyond the snowline to habitable-zone planets suggests collisions of very dry with water-rich bodies. By means of smooth particle hydrodynamics (SPH) simulations we study water delivery in scenarios where a dry target is hit by a water-rich projectile, focusing on hit-and-run encounters with two large surviving bodies, which probably comprise about half of all similar-sized collisions.

arXiv commentPublished as IAU Symposium Proceedings

References in corpus (3)

• A smooth particle hydrodynamics code to model collisions between solid, self-gravitating objects
• Ejection of iron-bearing giant-impact fragments and the dynamical and geochemical influence of the fragment re-accretion
• Transfer, loss and physical processing of water in hit-and-run collisions of planetary embryos

Cited by in corpus (2)

• Residual Neural Networks for the Prediction of Planetary Collision Outcomes
• On the formation of terrestrial planets between two massive planets: The case of 55 Cancri