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IN Science & Technology ON 11 Nov, 2016
In May 2016, astronomers found a supermassive black hole which is 660 million times bigger than the sun. This amazing discovery was made by researchers at the University of California using high-resolution data from the Atacama Large Millimetre/submillimetre Array (ALMA) in Chile. Let's check out more information and video of this giant black hole.
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Astronomers found a giant black hole which is 660 million times bigger than the sun.
Astronomers found that the mass of the giant black hole is 660 million times bigger than the sun. The scientist said, "This is among the most precise measurements of the mass of a galaxy's central black hole."
Aaron Barth from UCI explained, "This is the first time that ALMA has probed the orbital motion of cold molecular gas well inside the gravitational sphere of influence of a supermassive black hole. We are directly viewing the region where the cold gas is responding to the black hole's gravitational pull."
Barth further explained, "For a precise measurement, we need to zoom in to the very centre of a galaxy where the black hole's gravitational pull is the dominant force. ALMA is a fantastic new tool for carrying out these observations."
ALMA observes the wavelength at which the molecules glow brightly.
NGC 1332 is a giant elliptical galaxy in the southern sky 73 million light-years from Earth. The scientist explained, "About one in 10 elliptical galaxies contain disks of cold molecular gas and dust that orbit their centers."
Doppler Effect is a change in the frequency of sound, light or other waves due to the movement of source away from observers.
The emissions caused due to CO molecules are usually bright and thus can be easily detected with ALMA.
Benjamin Boizelle from UCI explained, "This observation demonstrates a technique that can be applied to many other galaxies to measure the masses of supermassive black holes to remarkable precision."
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