Medium black hole 'heard'
The black hole HLX-1, circled, is in the galaxy called ESO 243-49, around 300 million light years away. Image: NASA, University of Sydney They don't broadcast top pop songs, but black holes do emit radio waves as they accumulate matter. The first radio emissions to be detected from an intermediate mass black hole have been published in the prestigious journal Science by an international team of astronomers, including Dr Emil Lenc and Dr Sean Farrell from the University of Sydney's School of Physics.A team led by Dr Farrell, discovered the first intermediate mass black hole, called HLX-1, and published their findings in the journal Nature in 2009. This latest paper published in Science examines radio emissions from HLX-1, which are the first radio waves observed from an intermediate mass black hole and have allowed the scientists to refine the estimated size of this newly discovered black hole."Black holes are areas where the...