Second Detection of Gravitational Waves
Compared to the first gravitational wave detection, this new detection is from a binary of much lower total mass (22 solar masses compared to 65 solar masses), indicating that the cosmic population of merging black hole binaries is very diverse. This new system allowed also for the very first time to measure black hole spins: at least one of the black holes must be spinning.
The data release and tools to analyze data from LIGO’s first observation run can be downloaded at the LIGO Open Science Center.
CITA researchers have been actively involved in the data analysis of the event, contributing to the search pipelines that identified GW151226 and GW150914. In addition, they have contributed to estimating the rate of observable binary black hole mergers in the Universe. They have also helped develop the theoretical waveforms that are used for to determine the masses and spins of the identified events and performed cross-checks with supercomputer calculations of merging black holes. For details on CITA’s research in this rapidly evolving field of physics, please visit our research page.
Published on: June 15, 2016