Keyword: Finnish Centre for Astronomy with ESO

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NASA’s IXPE Helps Solve Black Hole Jet Mystery


Some of the brightest objects in the sky are called blazars. They consist of a supermassive black hole feeding off material swirling around it in a disk, which can create two powerful jets perpendicular to the disk on each side. A blazar is especially bright because one of its jets of high-speed particles points straight at Earth. For decades, scientists have wondered: How do particles in these jets get accelerated to such high energies?

MAGIC Telescopes Trace Origin of Rare Cosmic Neutrino


For the first time, astrophysicists have localised the source of a cosmic neutrino originated outside of the Milky Way. With high probability, the neutrino comes from a blazar, an active black hole at the centre of a distant galaxy in the Orion constellation. The scientists reached this interesting finding by combining a neutrino signal from IceCube with measurements from the Fermi-LAT and MAGIC telescopes as well as other instruments. This multi-messenger observation could also provide a clue to an unsolved mystery: the origin of cosmic rays.