LIGO Detects Gravitational Waves for the Third Time

Firmly transiting into the era of Gravitational Wave Astronomy
Published At: 2017-06-01 20:30 -
The Laser Interferometer Gravitational-wave Observatory (LIGO) has made another successful detection of gravitational waves, ripples in space and time, from the merger of two massive black holes that happened three billion light years away. This firmly reiterates the remarkable launch, announced last year, of a new window of astronomy.

Marking an eventful beginning of Gravitational Wave Astronomy

Twin LIGOs detect another Binary Black Hole merger

Published At: 2016-06-15 22:15 -
While the celebrations for the first detection of gravitational waves are still ringing down, we are excited to announce the observation of yet another binary black hole merger by LIGO. On December 26, 2015 at 09:09AM IST the LIGO detectors in Hanford, Washington and Livingston, Louisiana detected a signal from the coalescence of two black holes, with masses 14 and 8 times the mass of the sun, merging into a more massive, rapidly rotating black hole that is 21 times the mass of the sun. The event happened 1.4 billion years ago, lasted in LIGO's frequency band for about a second and released about 1 solar mass worth of energy in that short period. For comparison, only a tiny fraction of the sun's mass gets converted to light in its entire lifetime, which is enough to keep the earth warm for billions of years.

IndIGO Joins the LIGO Scientific Collaboration

Published At: 2011-10-01 11:48 -
The IndIGO consortium has been accepted as a member research group of the LIGO Scientific Collaboration (LSC). LSC is an international collaboration of scientists working on gravitational-wave-observation program, and is responsible for analyzing the data collected by the LIGO observatories in the USA and the GEO 600 observatory in Germany.

IndIGO joins the Gravitational-Wave International Committee

Published At: 2011-07-31 11:50 -
The Indian Initiative in Gravitational-Wave Observations (IndIGO) has been accepted as the newest member of the Gravitational Wave International Committee (GWIC). This marks an important recognition to the consortium by the international gravitational-wave (GW) community. GWIC was formed in 1997 to facilitate international collaboration and cooperation in the construction, operation and use of the major GW detection facilities worldwide. GWIC is affiliated with the International Union of Pure and Applied Physics , and the International Society on General Relativity and Gravitation .

Funding comes for the Indo-US center for gravitational-wave physics and astronomy

Published At: 2011-07-19 12:02 -
The Indo-US Science and Technology Forum (IUSSTF ) has funded an Indo-US Center for gravitational-wave physics and astronomy. The center will facilitate collaboration between Indian and US scientists working in the emerging field of gravitational-wave (GW) astronomy, with an eye to consolidating the Indo-US collaboration in GW-theory and data analysis, and extending it for setting up large-scale experimental facilities, and building related technological expertise in India.


What are gravitational waves?

Gravitational-wave detectors

  • LIGO
  • Virgo
  • GEO 600
  • TAMA
  • LCGT


"Hear" a gravitational wave


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