Astronomers spot quasar fueled by the mass of 12 billion suns

Scientists say they have found the brightest quasar yet in the early universe, a region around a supermassive black hole that blazes with the brightness of 420 trillion suns.

NASA/JPL-Caltech/T. Pyle (SSC)
Artist's concept of a quasar (bright area with rays) embedded in the centre of a galaxy.

Sen—An international team of astronomers, combining data from five different observatories, have found the brightest quasar ever discovered in the early Universe, powered by the most massive black hole yet known, equivalent to 12 billion Suns.

First discovered in 1963, quasars are the most powerful objects beyond our Galaxy. They shine as the central supermassive black hole actively collects surrounding material, releasing a huge amount of their gravitational energy.

Astronomers have discovered more than 200,000 quasars, with ages ranging from 0.7 billion years after the Big Bang to today. However, despite of their high luminosity, they still appear faint due to their large distance away from us, and they are extremely rare on the sky, which make them very difficult to find.

The quasar, labelled SDSS J0100+2802, has a central black hole with a mass of 12 billion solar masses and the luminosity of 420 trillion Suns. By comparison, our own Milky Way Galaxy has a black hole with a mass of only three million solar masses at its centre.

The black hole that powers this new quasar is four thousand times heavier than ours. SDSS J0100+2802 is also seven times brighter than the most distant quasar known (which is 13 billion years away) making it one of the most distant quasars discovered.

The quasar was discovered using data from the 2.4 metre Lijiang Telescope (LJT) in China, the 6.5m Multiple Mirror Telescope (MMT), and the 8.4m Large Binocular Telescope (LBTO) in USA, the 6.5m Magellan Telescope in Las Campanas Observatory, Chile, and the 8.2m Gemini North Telescope in Hawaii.

For Christian Veillet, Director of the LBTO, this discovery demonstrates both the power of international collaborations and the benefit of using a variety of facilities spread throughout the world.

Quasars evolved only about nine hundred million years after the Big Bang, close to the end of the cosmic dawn when light from the earliest generations of galaxies and quasars were thought to transformed the Universe. So how can a quasar so luminous, and a black hole so massive, form so early in the history of the Universe?

"This ultra-luminous quasar with a 12-billion solar mass black hole provides a unique laboratory to the study of the mass assembly and galaxy formation around the most massive black hole at early Universe,” said Professor Xiaohui Fan from Steward Observatory, the University of Arizona, in a statement.

“This quasar is unique. We are so excited, when we found that there is such luminous and massive quasar only 0.9 billion years after the Big Bang. Just like the brightest lighthouse in the distant universe, its glowing light will help us to probe more about the early universe,” Professor Xue-Bing Wu at Peking University, who led the team, also stated.

The research team will carry out further investigations on the quasar with the Hubble Space Telescope and the Chandra X-ray Telescope.

Related Links:

More on quasars

More from Universe

Quasars give astronomers best fix yet on expansion of the Universe

Original story from Sen. © 2015 Sen TV Limited. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. For more space news visit Sen.com and follow @sen on Twitter.

You've read  of  free articles. Subscribe to continue.

Dear Reader,

About a year ago, I happened upon this statement about the Monitor in the Harvard Business Review – under the charming heading of “do things that don’t interest you”:

“Many things that end up” being meaningful, writes social scientist Joseph Grenny, “have come from conference workshops, articles, or online videos that began as a chore and ended with an insight. My work in Kenya, for example, was heavily influenced by a Christian Science Monitor article I had forced myself to read 10 years earlier. Sometimes, we call things ‘boring’ simply because they lie outside the box we are currently in.”

If you were to come up with a punchline to a joke about the Monitor, that would probably be it. We’re seen as being global, fair, insightful, and perhaps a bit too earnest. We’re the bran muffin of journalism.

But you know what? We change lives. And I’m going to argue that we change lives precisely because we force open that too-small box that most human beings think they live in.

The Monitor is a peculiar little publication that’s hard for the world to figure out. We’re run by a church, but we’re not only for church members and we’re not about converting people. We’re known as being fair even as the world becomes as polarized as at any time since the newspaper’s founding in 1908.

We have a mission beyond circulation, we want to bridge divides. We’re about kicking down the door of thought everywhere and saying, “You are bigger and more capable than you realize. And we can prove it.”

If you’re looking for bran muffin journalism, you can subscribe to the Monitor for $15. You’ll get the Monitor Weekly magazine, the Monitor Daily email, and unlimited access to CSMonitor.com.