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Showing posts from August 17, 2025

NASA’s IXPE Challenges Theories on Black Hole Corona and Polarised X-Ray Emissions

The use of IXPE (Imaging X-ray Polarimetry Explorer) by NASA's international team of astronomers has brought into question the known theories of the fate of matter around a black hole. The study of incoming X-rays by astronomers, as well as measuring their light's electric field direction, has been made possible through IXPE. The degree of polarisation is an indicator of how single or multiple the vibrations are. Using a black hole's polarisation degree, scientists can estimate where its corona, an area that contains highly ionised and magnetised plasma, is located and how it produces X-rays. Unraveling the Mystery of Polarized X-Ray Emissions in Black Holes As per NASA, in X-ray binary systems, there is a super-dense object, such as a black hole, that pulls matter from a neighbouring star. This matter often starts to swirl and flatten into a structure that is recognised as an accretion disc. The accretion disc's inner layer, the corona, can reach temperatures over 1.8 ...