Jets of high-energy radiation come from near galaxies’ central black hole
NASA/Goddard Space Flight Center Conceptual Image Lab
An unusually luminous galaxy that fires off a jet of high-energy matter and radiation toward Earth.
Blazars have been spotted throughout the sky, but researchers don’t know how these jets form. Scientists suspect that gas piles up near a galaxy’s central black hole, where it heats up and gets flung away at nearly the speed of light. Astronomers are studying the blazar PKS 1830-211. Although it is about 11 billion light-years away, the gravity of at least one nearer galaxy acts as a lens, enabling scientists to examine the distant blazar’s energetic outbursts.
The source of high-energy gamma rays from PKS 1830-211 is a confined area about the size of the solar system, University of Geneva astrophysicist Andrii Neronov and colleagues report July 6 in Nature Physics. The finding confirms that whatever is driving blazar jets operates right near the central black