A panoramic image of the M87 black hole and its jet has been captured at a new 3.5 mm wavelength, revealing more details about the surrounding material and ring-like structure. Surprising findings suggest possible winds causing turbulence around the black hole. Future observations will study its tim
This artist’s conception shows a close-up view to the accretion flow and the jet emerging from black hole region in Messier 87. Researchers at the Shanghai Astronomical Observatory have taken a panoramic image of a black hole and its jet in Messier 87 at a new 3.5 mm wavelength.
GMVA+ALMA image of the central black hole region in Messier 87 obtained on April 14-15, 2018 at a wavelength of 3.5 mm. The large image depicts the jet and central ring as reconstructed by the standard CLEAN method. The inset shows a magnification of the inner region obtained with the super-resolving SMILI method, revealing the ring shape with a diameter of 64 microarcseconds, which corresponds to 8.4 Schwarzschild radii. Credit: R.-S. Lu , E. Ros , S.
The light from M87 is produced by the interplay between highly energetic electrons and magnetic fields, a phenomenon called synchrotron radiation. The new observations, at a wavelength of 3.5 mm, reveal more details about the location and energy of these electrons. They also tell us something about the nature of the black hole itself: it is not very hungry. It consumes matter at a low rate, converting only a small fraction of it into radiation.
Map of the radio telescopes used to image Messier 87 at 3.5 millimetres in the 2018 Global Millimetre VLBI Array campaign. Credit: Helge Rottmann, MPIfR
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