Researchers say light signal from space suggests merging black holes
January 10, 2015, 23:40:04 CET | Wikinews

Artist's depiction of two supermassive black holes merging. (Image: NASA.)
On Wednesday, George Djorgovski and collaborators reported in the journal Nature on an unusual light signal they say suggests two supermassive black holes are merging, a phenomenon never seen before, though theorized.

The discovery could clarify how black holes merge and galaxies evolve, and could also provide a better understanding of the so-called "final parsec problem" — the inability of theories to predict how, or even how quickly, the final phases of black hole mergers happen.

The team discovered the light coming from quasar PG-1302-102 in data from the Catalina Real-time Transient Survey (CTRS), which is able to study light sources from four fifths of the night sky using three ground-based US and Australian telescopes.

Coauthor and Caltech computational scientist Matthew Graham emphasized the final stages of these black hole mergers are not well understood.

CTRS has so far identified 20 quasars with similar signals, but Graham said this one is the best example because it has a clear signal that recurs about every five years, similar to a sine wave (see the 2D graph shown on the left).

Source: Wikinews
Share this article:
share article on facebook share article on twitter share article on google+ share article on tumblr share article on blogger share article on reddit

Send us your articles and web-novels!
comments powered by Disqus
Most popular


Recently Viewed:


Researchers say light signal from space suggests mer...

On Wednesday, George Djorgovski and collaborators reported in the journal Nature on an unusu...


Microsoft announces plan to acquire GitHub for US$7....

Wednesday, June 6, 2018  Economy and business Related articles 6 June 2018: Microsoft an...


BMW’s autonomous drifting car

BMW has demonstrated self-driving cars that can "drift" around bends and slalom between cone...


Italian footballer Andrea Pirlo announces retirement

"As my time in NYC FC comes to an end, I want to thank everybody for the kindness and suppor...


Pakistan frames law against 'honour killing'

On Thursday, Pakistan's parliament announced a bill has been passed against the practice of ...

Automotive
Reviews | Technology | Projects & Tuning | Events | Racing
Business & Technology
Business & Economy | Mobile | Internet & Media | Security & Privacy | Gadgets & Tech | Software
Lifestyle
Health, Food & Fitness | Fashion | Gardening | DIY | Homes
Society
Accidents | Crime | Culture | Finance | Politics
Science & Environment
Wildlife | Green | Space
Gaming
Reviews
Society
Accidents | Crime | Culture | Finance | Politics
Travel
MM-iNEWS
Copyright & Privacy | Site Roadmap | Sitemap | Contact
Web Development @ OverHertz Ltd
Ω