Astronomers using the Subaru Telescope have discovered 83 quasars in the distant Universe, from a time when the Universe was less than 10% of its present age.
Researchers from RIKEN and JAXA have used observations from the ALMA radio observatory located in northern Chile and managed by an international consortium including the National Astronomical Observatory of Japan (NAOJ) to measure, for the first time, the strength of magnetic fields near two supermassive black holes at the centers of an important type of active galaxies.
A new model is bringing scientists a step closer to understanding the kinds of light signals produced when two supermassive black holes, which are millions to billions of times the mass of the Sun, spiral toward a collision.
The study, carried out by two researchers at the Instituto de Astrofísica de Canarias, shows that the “change in position” observed in the nucleus of the galaxy M87 is not due to a displacement of its supermassive black hole, but to variations in the emission of light in the centre of the galaxy caused by outbursts coming from its jet, a flow of relativistic material along a narrow beam, emitted from just outside the black hole itself.
These behemoths defy expectations of how quickly black holes feed
Scientists have solved a cosmic mystery by finding evidence that supermassive black holes prevent stars forming in some smaller galaxies.
The unexpected discovery has astronomers rethinking ideas about the early days of the universe.
Physicists agree that 13-15 billion years ago our universe was shaped by a Big Bang. But where did that Big Bang come from? A new theory suggested by a group of physicists offers the likelihood that our universe is nestled inside a black hole.
Einstein’s greatest theory has aced another test. Two stars are speeding around the big black hole at the Milky Way’s core in just the way his general theory of relativity predicted.