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Kavli Institute for the Physics and Mathematics of the Universe

History of temperature changes in the Universe revealed—First measurement using the Sunyaev-Zeldovich effect

10 Nov 2020, 14:00 UTC
History of temperature changes in the Universe revealed—First measurement using the Sunyaev-Zeldovich effect D. Nelson / Illustris Collaboration.

How hot is the Universe today? How hot was it before? A new study by an international team of researchers, including members of the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), suggests that the mean temperature of gas in large structures of the Universe has increased about 3 times in the last 8 billion years, to reach about two million Kelvin today.

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