Keyword: Finnish Centre for Astronomy with ESO

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NASA’s IXPE Helps Solve Black Hole Jet Mystery

24.11.2022

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

06.07.2018

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.