сен 13, 2016
Secrets of the early universe set to be unlocked after astronomers discover 63 new quasars
The quasars could provide valuable information about the first billion years after the Big Bang
A team of astronomers has
discovered 63 new quasars, almost doubling the number previously known .
The biggest and brightest objects in our universe, quasars are situated billions of light years away and are the most distant objects that we can currently study .
Most quasars are 12 billion years old and were formed by two Galaxies colliding.
They are powered by
supermassive black holes, which can have a mass a billion times bigger than our
sun. Although light doesn't escape from the black hole itself, particles around
the edges of it break free, accelerating away nearly at the speed of light.
Despite their size and brightness, they are notoriously difficult to identify, making this latest discovery by Carnegie's Eduardo Bañados and his team particularly exciting.
Studying quasars allows scientists to glean valuable information about the first billion years after the Big Bang. The further away scientists look, the further back in time they can explore.
As quasars are billion of light years away, studying them will help experts learn more about the early universe.
By Georgie Barrat