What does the Universe sound like? Find out with Bryan Gaensler.
By exploring the connections between astronomy and music, Professor Bryan Gaensler , from the University of Sydney, will introduce a chamber music concert celebrating Galileo. The concert in Sydney on 10 March is one of nine concerts to be held around Australia in a collaboration between CAASTRO - the ARC Centre of Excellence for All-Sky Astrophysics - Musica Viva and Canadian chamber orchestra Tafelmusik. "I will discuss the unexpected sounds of deep space, including the loudest and deepest notes in the Universe," said Professor Gaensler, who is the director of CAASTRO. The sounds that fill the Universe are not sounds we are familiar with and are at frequencies far below anything we are capable of hearing. Sounds of the cosmos are not just made up of individual crashes and cracks, but also sustained notes and tones. "Astronomers' calculations suggest that the pitch of the universe is a throaty bass or baritone rather than a soprano," Professor Gaensler said. "The deepest note ever detected from an object in the universe comes from a supermassive black hole detected by NASA's Chandra X-ray Observatory.
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