X-ray polarization evidence for a 200-year-old flare of Sgr A* – Nature


Nature, Published online: 21 June 2023; doi:10.1038/s41586-023-06064-x

A study reports the measurement of the polarization degree and angle of X-rays from Sagittarius A* reflected off a nearby cloud, indicating an X-ray flare about 200 years ago.

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