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Chinese scientists identify dual cosmic particle system
Chinese scientists have unveiled a dual system for accelerating cosmic particles using the Large Air Shower Array in Sichuan Province, which is situated at an elevation of 4,410 meters and spans an area of 1.36 square kilometers. The system consists of a compact body—potentially a black hole or a neutron star—along with a massive companion star. It functions to accelerate particles to extremely high energies through interactions associated with strong stellar winds. Analyses have demonstrated the system's ability to accelerate particles to energies no less than 30 exa-electronvolts, specifically within an acceleration zone roughly three times the radius of the Sun. This discovery opens new horizons for studying extreme physical phenomena around compact cosmic objects and understanding the mechanisms behind particle acceleration in the universe.
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