Alexandra Eleni Koloniari

Gravitational Wave Astronomy

Alexandra Eleni Koloniari is a dedicated PhD Candidate in Physics at the Aristotle University of Thessaloniki (AUTh), Greece, and an active member of the university’s Gravitational Wave Group. Her research is situated at the cutting edge of modern astrophysics, focusing intensively on the emerging field of Gravitational Wave (GW) Astronomy. She is deeply involved in the global effort to detect and analyze signals from some of the most violent and energetic events in the universe, such as the mergers of black holes and neutron stars. A core component of Ms. Koloniari’s work involves data analysis for current and future gravitational wave observatories. She is a contributing member of the LIGO Scientific Collaboration (LSC), the global consortium that operates the ground-based LIGO, Virgo, and KAGRA detectors. Her published research focuses on developing and applying advanced computational and machine learning techniques to process the massive and complex datasets generated by these observatories. Specifically, her contributions include improving the robustness and sensitivity evaluations for gravitational wave detection algorithms, which is crucial for maximizing the number of new discoveries, as demonstrated by her work on the latest Gravitational-Wave Transient Catalogs (GWTC). Her expertise in computational physics allows her to tackle the immense challenges posed by analyzing these elusive signals, which often require separating subtle gravitational wave events from overwhelming instrumental noise. Ms. Koloniari’s research spans the full spectrum of GW observations, from the development of machine learning tools to enable rapid detection of new sources to contributing to searches for the isotropic gravitational-wave background. As she progresses through her doctoral studies, she is establishing herself as a promising young researcher who is actively advancing the application of cutting-edge computing methods to unlock the secrets held within the fabric of spacetime.

Zoom or in person, 10/2024-3/2026
90 min