All articles tagged with #hierarchical mergers
A new gravitational-wave catalog from LIGO-Virgo-KAGRA, with nearly 400 detections, lets scientists census black holes and shows they form through multiple channels—from direct stellar collapse to cluster dynamics and hierarchical mergers—while mass clusters near 10 and 35 solar masses and many objects spin rapidly, signaling a diverse, evolving black-hole population.
The detection of two gravitational wave events in 2024 reveals unusual black hole spins and mass ratios, providing evidence for 'second-generation' black holes formed from previous mergers, and confirming predictions of Einstein's general relativity with unprecedented precision.
A 2019 black hole merger signal shows signs of a third black hole, suggesting the first evidence of a black hole trinary system and more complex black hole interactions than previously thought.