The Experimental Planetology Group invites applications to undertake a PhD on the hydrodynamics of loss of atmospheres from planetary bodies and how it affects their composition.

The escape of atmospheres from planets and their precursors is a key process in determining their composition and structure. However, descriptions of how atmospheres evolve, particularly with regards to their physical state and composition, remain uncertain.

The successful candidate will develop numerical models based on experiments using an aerodynamic laser-heated levitation furnace to simulate atmospheric escape in the laboratory. Velocimetry measurements will be performed in order to describe the flow of gases around a molten bead in a fluid dynamical framework. Isotopic analyses of the residues of atmospheric loss are to be undertaken to establish the pressures at the surface of the bead. These constraints will be used to develop a 3D model of atmospheric loss from planetary bodies.

• Prospective applicants should hold an MSc in physics, with a specialisation in fluid dynamics, atmospheres, physical chemistry or related disciplines.
• The successful candidate is expected to fulfil some laboratory and/or teaching duties.
• Remuneration will conform to the internal rate set by ETH Zürich for doctoral students, here.

• A friendly, dynamic and interdisciplinary environment at ETH (Prof. Paolo Sossi and Dr. Jérôme Noir) and the University of Duisburg (Prof. Rolf Kuiper) at the forefront of experimental, numerical and isotopic work.
• Wide perspectives in the planetary sciences across the Department of Physics and the Center for the Origin and Prevalence of Life.
• ETH Zurich is ranked first in the world for Earth Sciences, a product of the cutting-edge research performed within the Department of Earth and Planetary Sciences (D-EAPS).
• At ETH, PhD completion is expected within 4 years.

In line with our values, ETH Zurich encourages an inclusive culture. We promote equality of opportunity, value diversity and nurture a working and learning environment in which the rights and dignity of all our staff and students are respected. Visit our Equal Opportunities and Diversity website to find out how we ensure a fair and open environment that allows everyone to grow and flourish.

We look forward to receiving your online application the form of a:

• CV
• 1-page statement of motivation

The deadline for applications is the 23rd of September 2024, ideally with a start date of 1st of January, 2025. Please note that we exclusively accept applications submitted through our online application portal. Applications via email or postal services will not be considered.

Further information about our group can be found on our website www.planetology.ethz.ch. Questions regarding the position should be directed to Prof. Paolo Sossi via email paolo.sossi [at] eaps.ethz.ch (no applications).

For recruitment services the GTC of ETH Zurich apply.

ETH Zurich is one of the world’s leading universities specialising in science and technology. We are renowned for our excellent education, cutting-edge fundamental research and direct transfer of new knowledge into society. Over 30,000 people from more than 120 countries find our university to be a place that promotes independent thinking and an environment that inspires excellence. Located in the heart of Europe, yet forging connections all over the world, we work together to develop solutions for the global challenges of today and tomorrow.