News – LIGO-India

GW231123 – THE MOST MASSIVE BLACK HOLE BINARY DETECTED THROUGH GRAVITATIONAL WAVES A collision between two massive and highly spinning black holes

On November 23, 2023, at 13:54:30 UTC, the LIGO-Virgo-KAGRA (LVK) collaboration detected GW231123, a gravitational-wave signal… Read more

GW230529 – Collision of a neutron star with a compact object in the mass-gap LIGO-India could hold the key to solving this cosmic mystery

The LIGO-Virgo-KAGRA international network of Gravitational Wave observatories announced the discovery of an exceptional astronomical event. The… Read more

Testing Einstein’s Theory of Gravity with Gravitational Waves Researchers from the LIGO-India Scientific Collaboration (LISC) contribute to important achievements in Gravitational Wave Science putting Einstein’s Theory to test, by analysing data from a recently compiled catalog

In 1915, Albert Einstein proposed the General Theory of Relativity (GR), in which gravity is described… Read more

Newly detected merging Black Holes establish Gravitational Waves as a powerful tool to explore the unseen Universe Indian researchers contribute to breakthroughs in various frontiers of Cosmology and Astrophysics using a newly compiled Gravitational Wave Transient Catalog

GWTC-Poster-O123-Landscape-WhiteBkg-LowRes

The LIGO-Virgo-KAGRA (LVK) Collaboration recently released the largest catalog ever of Gravitational-wave (GW) detections and a… Read more

All-sky, all-frequency directional search for persistent gravitational waves from Advanced LIGO’s and Advanced Virgo’s first three observing runs - O1, O2 & O3

These maps show the upper limits of expected gravitational waves strains at different frequencies. The upper… Read more

LIGO spots the first hybrid stellar collision LIGO’s sensational discovery of a new source of gravitational waves: collisions between Neutron Stars and Black Holes

Finally in January 2020, a pair of events, named GW200105 ad GW200115 were detected by gravitational… Read more

A Symphony of Giant Monsters Searching for Intermediate-Mass Black Hole Binaries in Advanced LIGO and Advanced Virgo's Third Observing Run

The search for intermediate-mass black holes (IMBHs) has been a focus of astronomers’ attention for many… Read more

When gravity bends gravity: Did gravitational-wave astronomers catch “Gravitational Lenses” at work?

In the first half of their third set of observations, the so-called “O3a observing run”, the… Read more

GW190521 – First clear evidence of Intermediate Mass Black Holes (IMBH) The heaviest and most distant binary black hole merger detected so far

On May 21, 2019, at 8:32am IST, the Advanced LIGO detectors (at Hanford, Washington and Livingston,… Read more

GW190814 – Discovery of the lightest black hole or the heaviest neutron star? LIGO-India will provide major help in solving such mysteries

The network of two advanced-LIGO detectors (at Hanford, Washington and Livingston, Louisiana, USA) and the advanced-Virgo… Read more

First detection of unequal mass binary merger Mass asymmetry generated detectable signal from higher multipoles

On April 12, 2019, just after 11:00 AM (IST), the LIGO Scientific Collaboration and Virgo Collaboration… Read more

Five binary merger candidates within one month of LIGO-Virgo’s O3 run Long Nights for Astronomers!

59465306_507855929619079_101688410204274688_n

In the first month of the third observing run (O3) of the LIGO-Virgo detectors, five binary… Read more

LIGO and Virgo are starting the third observing run with enhanced sensitivity Squeezed light to significantly stretch the observable volume

After nearly two years of pause, the LIGO detector in the US and the Virgo detector… Read more

Environmental clearance given to LIGO-India

40932316_408848679519805_5244074408930181120_n

LIGO-India has received the final approval from the state environment impact assessment authority this January. The… Read more

First detection of gravitational-waves from colliding neutron stars

The beginning of Gravitational Wave Multi-messenger Astronomy
First GW detection from a neutron star merger; Concurrent detection by electromagnetic telescopes [Image Credit: CESSI, IISER Kolkata]

Concurrent observation of electromagnetic emission launches gravitational-wave multi-messenger astronomy. August 17, 2017 saw a major… Read more