Join us in Geneva for the 2026 POSYDON School and learn how to use POSYDON, a state-of-the-art binary population synthesis code now in its second version. This four-day workshop is designed to help participants incorporate POSYDON effectively into their own research.
Through a series of hands-on labs, we will explore astrophysical scenarios such as mass-transfer stability, supernovae, binary black-hole populations, and more, showcasing how POSYDON can advance your research goals. Participation is limited to 25 attendees to keep the school highly interactive and discussion-driven.
Registration Is Now Open
Registration for the 2026 POSYDON School is now open and will remain open until April 30, 2026. Attendance is limited to 25 participants. To apply, please complete the registration form here: POSYDON School 2026 Registration Form.
There is no registration fee for the school. We will provide free coffee breaks and lunches to all participants throughout the week.
We ask all participants to plan to attend the full school from August 24 to August 27, 2026.
Participants are expected to have a solid background in the physics of single and binary stellar evolution, typically acquired through advanced undergraduate or graduate-level coursework, or through relevant research experience.
Participants are not expected to know how to use POSYDON but should bring a personal laptop for the hands-on sessions.
We recommend that participants read the instrument papers for POSYDON v1 and POSYDON v2 to familiarize yourself with the code infrastructure.
Familiarity with Python and command line usage is expected.
For PhD, Master’s, and Bachelor’s students, we will reach out to your supervisor to confirm that you meet the availability, funding, and preparedness requirements. Make sure you have your supervisor’s permission before applying.
Limited financial support may be available. Applicants for whom financial support is necessary for participation should, after submitting the registration form, send a separate email to posydon.school@gmail.com explaining and motivating their request.
Please email posydon.school(at)gmail.com with any questions or concerns. We expect to notify participants after the application period closes.
The school will take place at the Geneva Observatory, located at Chemin Pegasi 51, CH-1290 Versoix, Switzerland.
POSYDON School Science Organizing Committee:
Jeff Andrews, Tassos Fragos, and Vicky Kalogera