6. How do you weigh a black hole?
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Infra-red observations have been used by teams in California and Germany to measure the mass of the black hole at the centre of the Galaxy at just over 4 million times the mass of our Sun. ‘How do you weigh a black hole?’ shows that similar dynamic techniques can be used to measure the masses of the millions of black holes that pervade our Galaxy as stars and black holes are frequently found as pairs in a binary system. The smallest black hole that we can measure is a few times the mass of our Sun, but the heaviest stellar-mass black holes can exceed a hundred times the mass of our Sun.
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2009 ◽
Vol 5
(S267)
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pp. 151-160
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2020 ◽
Vol 498
(2)
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pp. 1905-1910
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2019 ◽
Vol 488
(4)
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pp. 5340-5351
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1990 ◽
Vol 124
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pp. 537-542
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2004 ◽
Vol 2004
(IAUS222)
◽
pp. 115-116
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2007 ◽
Vol 3
(S245)
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pp. 219-222
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