Georgia Tech joins hunt for gravitational waves as a member of the LIGO Scientific Collaboration

Laura Cadonati and Deirdre Shoemaker
CRA professors Laura Cadonati and  Deirdre Shoemaker

LIGO will for the first time directly detect gravitational waves, the ripples in the fabric of space-time predicted a century ago by Einstein with his theory of general relativity. Detecting and characterizing gravitational waves will unveil a new perspective of the cosmos, complementing the view provided by electromagnetic waves such as visible light, X-rays, radio, infrared and gamma rays.

Cadonati, currently chair of the LIGO Scientific Collaboration data analysis council, has joined the Center for Relativistic Astrophysics (CRA) in the Georgia Tech School of Physics. The center is devoted to interdisciplinary research and education linking astrophysics, astroparticle physics, cosmology and gravitational physics. In addition to Cadonati, the LIGO effort at Georgia Tech will also include Deirdre Shoemaker, an associate professor in the School of Physics and director of the CRA, and will involve close collaboration with Pablo Laguna, chair of the School of Physics.

In the search for gravitational waves, LIGO-related researchers at Georgia Tech will model sources of gravitational waves and analyze the large amount of data collected by LIGO. Their focus will be on those gravitational waves produced by transient cataclysmic events such as collisions of neutron stars and black holes.

Georgia Tech’s involvement will also include a high-performance computing facility and the construction of a remote monitoring facility with live data feeds from LIGO observatories in Livingston, Louisiana and Hanford, Washington. The campus facility will also provide training for scientists to learn the intricacies of the LIGO instruments and the complexities involved in the analysis of the data. The facility will also include a tabletop interferometer to be used for student training and outreach. Participation and leadership in the LIGO Scientific Collaboration will enable research opportunities for Georgia Tech faculty members working on big data analysis, optical interferometry and related technologies

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Relativistic Mergers of Supermassive Binary Black Holes and their Electromagnetic Signatures


Image credit : Tanja Bode

This image shows a computer-generated binary system of black holes orbiting around one another just before they merge.

Being able to observe the emission of radiation and corresponding gravitational waves provides a unique opportunity to connect the properties of the binary system with the physical characteristics of the interacting gas.

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Installation of Einstein Monument at Georgia Tech

“Albert Einstein is present throughout Georgia Tech every day. His ideas and discoveries — his magnificent, startling breakthroughs in humanity’s understanding of the workings of space and time, energy and matter — feature liberally in Georgia Tech’s thinking and conversations about research and education.

As scientists and mathematicians who cherish the innovations that our fields continue to ignite for society, my colleagues and I are elated that Georgia Tech has chosen to celebrate science with Einstein, and we are grateful beyond measure to all who have brought this about.” – Paul M. Goldbart, Dean of the College of Sciences

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