fourth gravitational wave is detected with european help
Last Updated : GMT 05:21:58
Arab Today, arab today
Arab Today, arab today
Last Updated : GMT 05:21:58
Arab Today, arab today

Fourth gravitational wave is detected, with European help

Arab Today, arab today

Arab Today, arab today Fourth gravitational wave is detected, with European help

Artist's impression of two black holes as they spiral towards each other before merging.
Turin - Arab Today

A team of scientists at the Laser Interferometer Gravitational-wave Observatory (LIGO) announced Wednesday they successfully detected another gravitational wave — the fourth so far — after two black holes collided in space.

GW170814, named after the day it was detected, is a black hole collision that happened 2 billion years ago. The space-time ripples caused by the collision were also picked up by the Virgo detector in Pisa, Italy. The discovery by both LIGO and its European cousin — announced at the meeting of G7 science ministers in Turin, Italy — adds a new layer of information about gravitational waves.

The collision happened at a distance of over 1.8 billion light-years from the Milky Way. The two black holes involved were estimated to be roughly 31 and 25 times the mass of our sun. The spinning black hole that was created as a result is about 53 times the sun's mass. The shockwaves of the collision reached the LIGO observatory in Livingston, Louisiana, first. Eight milliseconds later, they lit up instruments at the LIGO observatory in Hanford, Washington. It reached Virgo 6 milliseconds later.

This marks the fourth confirmed detection of two black holes merging.

"It is tantalizing to see this new story of how black holes formed and evolved through history of the cosmos," Sheila Rowan of Glasgow University told BBC News. The available information on the subject was growing but the complete picture was not yet clear, she added.

Observations made by LIGO in September 2015 proved Einstein’s century-old prediction about the interaction of gravitational waves and space. The multiple sets of data obtained — this time from the same wave — have helped scientists further detect the shape of the path the waves travel along by studying the polarization of gravitational waves. This was a second major prediction made in the theory of relativity and the different angle of alignment of the waves, in respect to Virgo, allowed for a unique view-point, leading to the confirmation.

Virgo started operations on a scale parallel to LIGO on Aug. 1. It follows the model set by LIGO and the data it collects will prove crucial in zeroing in on the location, which is somewhere in the region centred around the Eridanus constellation.

The signal detected, though faint, was enough to ascertain because of the three points of detection. The team was able to detect the gravitational wave, and this will help focus efforts on the right region of space, leading to more constructive data.

These ripples are detected with lasers which are passed through miles-long tunnels. The laser beam undergoes interference when there are changes in the fabric of space-time of almost up to the width of a proton, according to a report by GeekWire.

"This is just the beginning of observations with the network enabled by Virgo and LIGO working together. With the next observing run planned for late 2018, we can expect such detections weekly or even more often,” David Shoemaker, a physicist at the Massachusetts Institute of Technology and spokesperson for the LIGO collaboration said in a Guardian report.

The three detectors will together enable the team to be more precise about the origin of these waves. Studying these waves and understanding the interaction they have with different objects could prove to be an excellent tool to locate objects in the universe, the team said at a news conference on the sidelines of the ministerial meeting.

The location of the gravitational wave discovered in August was pinpointed to a location 10 times more precise than the three previous recordings. The team said the fourth wave helped them prove an aspect of Einstein’s theory of relativity which was not possible before

Source: AFP

 

arabstoday
arabstoday

Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

fourth gravitational wave is detected with european help fourth gravitational wave is detected with european help

 



Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

fourth gravitational wave is detected with european help fourth gravitational wave is detected with european help

 



Arab Today, arab today Modern colorful bedroom renovation

GMT 11:23 2017 Thursday ,21 December

Modern colorful bedroom renovation
Arab Today, arab today For the Variety of Interior Design Styles

GMT 11:14 2017 Tuesday ,19 December

For the Variety of Interior Design Styles

GMT 16:46 2017 Saturday ,28 January

Parliament to do best to ease suffering

GMT 00:43 2016 Thursday ,18 August

Kenya wins East Africa military games

GMT 05:03 2017 Wednesday ,09 August

More HIV Cases among Chinese Students

GMT 15:38 2017 Saturday ,15 April

Fneish discusses sports with Ambassador of Poland

GMT 13:35 2017 Friday ,17 November

Turkey capital bans German gay film festival

GMT 16:49 2018 Thursday ,18 October

Vidal fined 800,000 euros for Munich nightclub fight

GMT 04:13 2017 Monday ,23 January

Australian police in cocaine bust worth Dh950m

GMT 15:00 2016 Sunday ,18 September

Iran nominates ‘The Salesman’ for 2017 Oscar

GMT 02:29 2017 Monday ,27 March

Double-amputee Marine vet joins NYPD

GMT 10:59 2017 Saturday ,23 September

Mohamed Saad describes “The Treasure”

GMT 09:27 2017 Saturday ,18 November

Saber Al Robaei appreciates Egypt’s Opera House

GMT 17:28 2016 Monday ,28 November

CMA sets up committee to manage Al-Mojil Group

GMT 23:32 2016 Wednesday ,30 November

Queen Rania receives Foreign Press Association

GMT 10:39 2016 Friday ,30 December

Cavaliers hold off Celtics, Thunder fall

GMT 06:52 2016 Friday ,19 August

Gawker.com to shut down next week

GMT 19:11 2014 Monday ,18 August

Akhr Shajara fil Madina
Arab Today, arab today
 
 Arab Today Facebook,arab today facebook  Arab Today Twitter,arab today twitter Arab Today Rss,arab today rss  Arab Today Youtube,arab today youtube  Arab Today Youtube,arab today youtube

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©

arabstoday arabstoday arabstoday arabstoday
arabstoday arabstoday arabstoday
arabstoday
بناية النخيل - رأس النبع _ خلف السفارة الفرنسية _بيروت - لبنان
arabstoday, Arabstoday, Arabstoday