Fresh imagery from the Event Horizon Telescope traces magnetic fields swirling out from the black hole at the center of our Milky Way galaxy.
A new image from the Event Horizon Telescope shows lines of polarization, a signature of magnetic fields, around the shadow of the Milky Way's central black hole. traces the lines of powerful magnetic fields spiraling out from the edge of the supermassive black hole at the center of our Milky Way galaxy, and suggests that strong magnetism may be common to all supermassive black holes.
by taking a close look at the black hole in polarized light, which reflects the patterns of particles whirling around magnetic field lines. Researchers used the same technique to determine the magnetic signature of Sagittarius A*, or Sgr A* for short. “Making a polarized image is like opening the book after you have only seen the cover,” EHT project scientist Geoffrey Bower, an astronomer at Academia Sinica in Taiwan, explained inimage. … We were relieved that polarized imaging was even possible. Some models were far too scrambled and turbulent to construct a polarized image, but nature was not so cruel.
“The fact that the magnetic field structure of M87* is so similar to that of Sgr A* is significant because it suggests that the physical processes that govern how a black hole feeds and launches a jet might be universal among supermassive black holes, despite differences in mass, size and surrounding environment,” said EHT deputy project scientist Mariafelicia De Laurentis, a professor at the University of Naples Federico II in Italy.
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