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

Published online by Cambridge University Press:  13 January 2020

Christoph Burger
Affiliation:
Department of Astrophysics, University of Vienna, Türkenschanzstraße 17, 1180 Vienna, Austria email: c.burger@univie.ac.at Institut für Astronomie und Astrophysik, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
Thomas I. Maindl
Affiliation:
Department of Astrophysics, University of Vienna, Türkenschanzstraße 17, 1180 Vienna, Austria email: c.burger@univie.ac.at
Christoph Schäfer
Affiliation:
Institut für Astronomie und Astrophysik, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
Corresponding
E-mail address:

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 (Genda et al. 2017).

Type
Contributed Papers
Copyright
© International Astronomical Union 2020 

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References

Burger, C. & Schäfer, C. 2017, Proceedings of the First Greek-Austrian Workshop on Extrasolar Planetary Systems, 63Google Scholar
Burger, C., Maindl, T.I., & Schäfer, C. 2018, CeMDA, 130, 2CrossRefGoogle Scholar
Genda, H., Iizuka, T., Sasaki, T., Ueno, Y., & Ikoma, M. 2017, E&PSL, 470, 87CrossRefGoogle Scholar
Schäfer, C., Riecker, S., Maindl, T.I., Speith, R., Scherrer, S., & Kley, W. 2016, A&A, 590, A19CrossRefGoogle Scholar

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