Postdoc Position at the Astronomical Institute of the Czech Academy of Sciences

Closing date: 26. 1. 2026

The Astronomical Institute of the Czech Academy of Sciences invites applications for a postdoc position in the Relativistic Astrophysics Group (astro.cas.cz/people) at the Prague section of the Institute. The appointment will initially be for 1 year, with a possible extension to 2 years. The anticipated start date is early Spring 2026, though this remains flexible and subject to negotiation.

We seek candidates with a strong background in one or more of the following areas: black hole physics, black hole perturbation theory and quasinormal modes, quantum or modified theories of gravity, gravitational-wave theory, and application of machine learning or advanced computational methods to theoretical physics.

The successful candidate will conduct systematic research into black hole ringdown within realistic astrophysical environments. Key objectives include comparing the environmental signatures against modified gravity theories and evaluating their observational prospects.

Application Requirements: Please submit the following documents in one pdf:
1. Curriculum Vitae,
2. full list of publications,
3. Research Statement (max. 3 pages) detailing past achievements and how your expertise would benefit the position.

Please arrange for two or three letters of recommendation to be sent directly by the referees to the email address listed below.

**Submission Details:**
- Closing date: Please ensure all materials, including recommendation letters, are submitted by January 26, 2026, to receive full consideration.
- Applications should be sent to: sekretariat (at) asu.cas.cz
- CC to: kotlarik (at) asu.cas.cz
- Subject: “LUC25 postdoc – Prague”

Candidates must hold a PhD in theoretical physics, astrophysics, or a closely related field by the start of the appointment. A necessary condition for the appointment is satisfying the legal requirements for employment in the Czech Republic. For informal inquiries, please get in touch with Petr Kotlařík at the email address: kotlarik (at) asu.cas.cz.

Receipt of all applications will be acknowledged via email. Shortlisted candidates will be notified following the conclusion of the selection process.

Further information:

• http://www.asu.cas.cz for the list of working groups at the Institute. 
• http://www.euraxess.cz for details about the research employment and work conditions in Czech Republic. 
• http://www.numbeo.com/cost-of-living/comparison.jsp to compare cost of living.