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Explore groundbreaking discoveries from the LIGO-Virgo-KAGRA collaboration's fourth observing run in this joint astrophysics colloquium presented by Salvatore Vitale from MIT. Learn about the detection of over 200 new compact binary mergers identified in low latency, with a focus on the 81 confirmed detections from the O4a segment that have significantly expanded our dataset of stellar-mass compact objects. Discover how these gravitational-wave observations are revolutionizing our understanding of binary black hole mergers and the population properties of stellar-mass compact objects. Gain insights into the latest methodologies used in gravitational-wave astronomy and understand the profound astrophysical implications of these recent discoveries for our knowledge of compact object formation and evolution.
