100%, Zurich, fixed-term
Radial velocity techniques employing extreme-precision radial velocity (EPRV) spectrographs are currently the only mature and validated methods capable of detecting Earth-like planets around nearby stars without depending on favorable transit geometry. However, stellar variability often produces signals an order of magnitude larger than those induced by small, temperate rocky planets, presenting a significant challenge to systematic surveys. This issue has inspired a new observational approach, pioneered by the Terra Hunting Experiment consortium (www.terrahunting.org).
The HARVY project builds upon the Terra Hunting legacy with the aim of delivering an innovative reference design for an EPRV spectrograph that can be manufactured economically and deployed in series. HARVY is intended for installation on a worldwide network of approximately ten 1.5-m telescopes, enabling a systematic survey of hundreds of Sun-like stars, far exceeding the capabilities of single-facility programs while significantly increasing access to world-class EPRV data for the exoplanet community. This is achieved by maximizing the efficiency of each component of the spectrograph, allowing extreme radial-velocity precision to be attained with a compact, scalable, and cost-effective design.
The PhD student will play a pivotal role in advancing the HARVY optical design. Building on an existing concept study, this project focuses on the evaluation, characterization, and optimization of key novel optical components. The primary goal of the PhD is to actively participate in the instrument construction phase, leading the design and manufacturing of essential subsystems, and contributing to the preparation and execution of the on-sky test campaign planned for 2028.
The successful candidate will work at the intersection of astrophysics, optical design, and astronomical instrumentation in a world-leading research environment at ETH Zurich. The project directly contributes to the long-term goal of detecting true Earth analogues around nearby stars and establishing robust target lists for future exoplanet characterization missions, such as NASA's Habitable Worlds Observatory (HWO) and ESA's LIFE mission.
During the PhD, the student will develop expertise in:
The PhD position (100%) is expected to commence in September 2026 (or as mutually agreed with the successful candidate). The initial appointment is for four years, subject to satisfactory progress, in accordance with ETH Zürich doctoral regulations.
The PhD position is fully funded and based at ETH Zürich. The successful candidate will be employed as a doctoral researcher under Swiss employment conditions. Salary and social benefits are provided according to ETH Zürich and Swiss federal regulations.
The position is based at ETH Zurich, renowned for its interdisciplinary and international research environment.
In alignment with our values, ETH Zurich promotes an inclusive culture. We encourage equality of opportunity, value diversity, and foster a working and learning environment that respects the rights and dignity of all our staff and students. Visit our Equal Opportunities and Diversity website to discover how we maintain a fair and open environment that enables everyone to thrive. Sustainability is a core value for us, and we are continuously striving for a climate-neutral future.
Apply online using the form below. Only applications matching the job profile will be considered.
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Location : Fully
Country : Switzerland