Search results
Results From The WOW.Com Content Network
The Laser Interferometer Gravitational-Wave Observatory (LIGO) is a large-scale physics experiment and observatory designed to detect cosmic gravitational waves and to develop gravitational-wave observations as an astronomical tool. [1]
LIGO has been involved in all subsequent detections to date, with Virgo joining in August 2017. [2] Joint observation runs of LIGO and VIRGO, designated "O1, O2, etc." span many months, with months of maintenance and upgrades in-between designed to increase the instruments sensitivity and range.
An automatic computer search of the LIGO-Hanford datastream triggered an alert to the LIGO team about 6 minutes after the event. The gamma-ray alert had already been issued at this point (16 seconds post-event), [21] so the timing near-coincidence was automatically flagged. The LIGO/Virgo team issued a preliminary alert (with only the crude ...
Currently, the most sensitive ground-based laser interferometer is LIGO – the Laser Interferometer Gravitational Wave Observatory. LIGO is famous as the site of the first confirmed detections of gravitational waves in 2015. LIGO has two detectors: one in Livingston, Louisiana; the other at the Hanford site in Richland, Washington.
The waveform, detected by both LIGO observatories, [6] matched the predictions of general relativity [7] [8] [9] for a gravitational wave emanating from the inward spiral and merger of two black holes (of 36 M ☉ and 29 M ☉) and the subsequent ringdown [b] of a single, 62 M ☉ black hole remnant.
GW170104 was a gravitational wave signal detected by the LIGO observatory on 4 January 2017. On 1 June 2017, the LIGO and Virgo collaborations announced that they had reliably verified the signal, making it the third such signal announced, after GW150914 and GW151226, and fourth overall. [1] [2]
Adhikari is actively involved in the LIGO-India project, which aims to build a gravitational-wave observatory in India. [6] He was elected as a Fellow of the American Physical Society [8] and a member of Optica (formerly known as Optical Society of America). [9] Since 2019 he has been a member of the Infosys Prize jury for physical sciences. [10]
GW151226 was a gravitational wave signal detected by the LIGO observatory on 25 December 2015 local time (26 Dec 2015 UTC). On 15 June 2016, the LIGO and Virgo collaborations announced that they had verified the signal, making it the second such signal confirmed, after GW150914, which had been announced four months earlier the same year, [1] [2] and the third gravitational wave signal detected.