gravitational-wave observatory

The gravitational-wave observatories LIGO and Virgo are designed to probe stellar mass transients in a frequency range of tens to about fifteen hundred Hz.

ESA began a full revision of the mission's concept and renamed it as the New (or Next) Gravitational-wave Observatory (NGO).

IndIGO consortium has spearheaded the proposal for the LIGO-India gravitational-wave observatory, in association with the LIGO laboratory in USA.

The L-shaped detector here and its recently completed twin in Hanford, Wash., are called LIGO (pronounced LIE-go), for Laser Interferometer Gravitational-Wave Observatory.

Since 2009, the IndIGO Consortium has been involved in constructing the Indian roadmap for gravitational-wave astronomy and a phased strategy towards Indian participation in realizing a gravitational-wave observatory in the Asia-Pacific region.

But an exception is the Laser Interferometer Gravitational-Wave Observatory, or LIGO, that is being built in duplicate, one near Richland, Wash., and the other near Livingston, La., at an expected cost to taxpayers of about $85 million.