Department of Physics, Engineering Physics & Astronomy

Department of Physics, Engineering Physics & Astronomy
Department of Physics, Engineering Physics & Astronomy

Departmental Colloquium - "Searching for – and finding!  gravitational waves”

Gabriela Gonzalez,
Louisiana State University,

January 18th, 2017
11:30 a.m. Theatre AUD

Abstract:

On September 14 2015, the two LIGO gravitational wave detectors in Hanford, Washington and Livingston, Louisiana, US registered a nearly simultaneous signal with time-frequency properties consistent with gravitational-wave emission by the merger of two massive compact objects. Further analysis of the signals by the LIGO Scientific Collaboration and the Virgo Collaboration revealed that the gravitational waves detected by LIGO came from the merger of a binary black hole system. This observation, followed by another one in December 2015, marked the beginning of gravitational wave astronomy. I will describe some details of the observation, the status of LIGO and Virgo ground-based interferometric detectors, and prospects for future observations.