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Indian and US satellites, AstroSat and Chandra, measure a black hole's spin rate


Using the X-ray data from two different satellites, AstroSat and Chandra, an international team of astronomers from multiple institutions, led by the Tata Institute of Fundamental Research (TIFR) in Mumbai, India, has measured the spin rate of a black hole in the binary stellar system 4U 1630−47.


Indian and US satellites, AstroSat and Chandra, measure a black hole's spin rate