Measuring tiny ripples in space-time
The Laser Interferometer Gravitational-wave Observatory (LIGO) consists of two 4-km gravitational-wave detectors in Hanford, WA and Livingston, LA, along with the 3-km Virgo detector near Pisa, Italy. These three detectors use laser interferometry to measure tiny ripples in space-time caused by passing gravitational waves from cataclysmic cosmic sources.
To date six gravitational-wave signals have been detected, five from the merger of black holes and one from the collision of neutron stars. This latter signal was the first to be spectacularly observed across the electromagnetic spectrum, opening the era of multi-messenger astronomy.
In this talk, Dr Laura Nuttall from the University of Portsmouth, will discuss the challenges of making these first detections, both from an instrumental and analysis viewpoint, and the exciting astrophysics they have uncovered.
Refreshments will be available before the lecture from 6.30 pm.The lecture will start at 7.00 pm
This is a free event open to the public. Registration before the event is much appreciated to help our planning - but not essential.