The Heidelberg Institute for Theoretical Studies (HITS) was established in 2010 by physicist and SAP co-founder Klaus Tschira (1940-2015) and the Klaus Tschira Foundation as a private, non-profit research institute. HITS conducts basic research in the natural, mathematical, and computer sciences. Major research directions at HITS include complex simulations across scales, data science and analysis, and enabling software and tools. Application areas range from molecules to stars, and from words to weather.
An essential characteristic of the Institute is interdisciplinarity, implemented in numerous cross-group and cross-disciplinary projects. The base funding of HITS is provided by the Klaus Tschira Foundation.
HITS offers a
The Theory and Observations of Stars (TOS) group at the Heidelberg Institute for Theoretical Studies invites applications for a PhD position.
Within the TOS group we are interested in understanding the physical processes that determine the structure and evolution of stars using asteroseismology – the study of the internal structures of stars through their global oscillations. The focus is on solar-like oscillators, i.e. low-mass main-sequence stars, subgiants and red-giant stars that possess oscillations similar to those present in the Sun.
Your role
We are seeking a highly motivated PhD student to join the TOS group.
The project is broadly defined to investigate the physical processes at play in the internal structures of red-giant stars, with a specific focus on magnetic fields in these stars. This project involves the analysis of both observational data, as well as synthetic stellar models to understand the underlying structure of stars.
What qualifies you for this job
Candidates for admission for the PhD program should have a MSc degree or equivalent in physics, astrophysics or a related discipline.
We offer
You will be based at the Heidelberg Institute for Theoretical Studies, where you will find:
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A first-class research environment and outstanding computing infrastructure embedded within the vibrant Heidelberg astronomical community that includes the Center for Astronomy of Heidelberg University and two Max Planck Institutes.
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An English-speaking, international and thriving work environment.
As an organisation affiliated with the Klaus Tschira Foundation (KTS), we offer a wide range of benefits:
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A 65% position with a salary, comparable to public sector salaries.
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Work-life integration: Flexible working hours, 30 days of vacation, additional company holidays, and the option to work remotely on a pro-rata basis.
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Job ticket, fitness and childcare subsidies, capital-forming benefits, company pension plan, health screen vouchers, and other attractive benefits.
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Free car park and bicycle parking spaces with charging facilities.
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Varied and subsidised meals in our in-house restaurant with free drinks and a coffee and tea bar.
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Get an impression of HITS as an employer: Working at HITS
For any additional information regarding the position please contact Prof. Dr. ir. Saskia Hekker
The planned starting date is October 2026, negotiable. To apply, please submit the following documents by 19 July 2026:
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Cover letter with your motivation
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Curriculum vitae
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Certificates
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Research statement (max. 2 pages, for Postdoc candidates only)
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Contact details for two referees
HITS gGmbH stands for equal opportunities and we strongly believe that our research benefits from inclusive and diverse teams.
