Wednesday, September 20, 2017
News

Binary supermassive black holes discovered

   SocialTwist Tell-a-Friend    Print this Page   COMMENT

Washington | April 23, 2014 12:01:13 AM IST
 
An international research team has discovered a pair of supermassive black holes in orbit around one another.

This is the first time such a pair could be found in an ordinary galaxy. They were discovered because they ripped apart a star when ESA's space observatory XMM-Newton happened to be looking in their direction.

On 10 June 2010, a tidal disruption event was spotted by XMM-Newton in galaxy SDSS J120136.02+300305.5, approximately 2 billion light-years away. Komossa and her colleagues were scanning the data for such events and scheduled follow-up observations just days later with XMM-Newton and NASA's Swift satellite.

The galaxy was still spilling X-rays into space. It looked exactly like a tidal disruption event caused by a supermassive black hole but as they tracked the slowly fading emission day after day something strange happened.

The X-rays fell below detectable levels between days 27 and 48 after the discovery. Then they re-appeared and continued to follow a more expected fading rate, as if nothing had happened.

Now, thanks to Fukun Liu, this behavior can be explained. "This is exactly what you would expect from a pair of supermassive black holes orbiting one another," says Liu.

The findings have been published in the Astrophysical Journal. (ANI)

Watch News Videos

 
  LATEST COMMENTS (0)
POST YOUR COMMENT
Comments Not Available
 
POST YOUR COMMENT
 
TRENDING TOPICS
 
 
 
CITY NEWS
MORE CITIES
INDIA WORLD ASIA
2 arrested with leopard skin in Jammu...
IT and e-governance department taking st...
BJP leader Gaur demands cut in VAT on pe...
Floods in north and shortage of rainfall...
Mumbai rains: Situation to be normal in ...
Cabinet approves transfer of Hotel Jaipu...
More...    
 
 Top Stories
Rs 113 cr spent on maintenance of m... 
Young man dies in road rage case, a... 
Saudi King allocates $15 million fo... 
Floating labs to boost innovation i... 
Bengal child protection body moves ... 
Ronaldo, Messi lead 2017 FIFA World... 
Pakistan target Asia Cup hockey tit... 
Sanjeev Kapoor is brand ambassador ...