RSAA Colloquia / Seminars / Feast-of-Facts: Thursday, 01 July 2021, 11:00-11:30; ZOOM and DLT


Fiona Panther

"Low-latency detection of gravitational waves: The SPIIR pipeline"

The first detection of gravitational waves (GWs) from the coalescence of two stellar mass black holes in 2015 opened a long-sought window into our universe. Since then, nearly 100 such compact binary coalescences (CBCs) have been detected by the LIGO and Virgo interferometers. In 2019, the LIGO-Virgo collaboration (LVC) provided public alerts of GW events in close to real time, a service made possible by the LVC’s five low-latency data analysis pipelines which continuously analyse data collected by the interferometer network. The SPIIR pipeline, developed at the University of Western Australia, is the fastest of the five pipelines, performing a coherence search for cosmic GW signals. In this talk I will give an overview of the novel SPIIR method and its application in GW detection, results from the third observing run, and the prospects for real-time and ’early warning’ detection of GWs in the upcoming fourth LIGO-Virgo-KAGRA observing run.