Hello there! I'm a PhD candidate in astrophysics at the University of Amsterdam.

In September 2023, I started my PhD at the Anton Pannekoek Institute for Astronomy at the University of Amsterdam, where I work with Dr. Silvia Toonen and Dr. Eva Laplace on the evolution of multiple-star systems. I develope analytical models and use numerical simulations to understand how stellar interactions in binary and triple-star systems shape their orbital evolution, ultimate fate, and the transient phenomena they produce in both electromagnetic and gravitational-wave radiation.

Before that, I completed my undergraduate studies at Aristotle University of Thessaloniki and spent a semester abroad at the University of Lancashire. For my Master’s thesis, I studied mass transfer from a tertiary to an inner binary using hydrodynamical simulations, working with Dr. Silvia Toonen.

Key Interests

• Binary and triple star systems
• Eccentric mass transfer
• Gravitational waves from stellar interactions
• Numerical simulations
• Population synthesis

Publications

First-author papers

2025

Parkosidis, A., Stamatellos, D., & Riaz, B.

Astronomy & Astrophysics, 696, A104.

Talks & Events

Mass Transfer in Eccentric Binaries: A Unified Framework & New Insights
Binary Stars in a New Era
Lijiang, China
Date: August 25, 2025
Contributed talk
Mass Transfer in Eccentric Binaries: A Unified Framework & New Insights
Netherlands Astronomy Conference 2025
Nijmegen, Netherlands
Date: May 28, 2025
Contributed talk