Black Hole Image Changes Dramatically in 4 Years
- Scientists have released new images of the supermassive black hole at the center of the galaxy Messier 87 (M87), located 55 million light-years from Earth.
- Related: Astronomers accidentally use rare 'double zoom' technique to view black hole's corona in unprecedented detail
- The EHT, in collaboration wiht the Max Planck Institute for Radio Astronomy (MpiFR), analyzed three images to trace the changes in the area around the black hole.
New Images Reveal magnetic Field Dynamics Around Supermassive Black Hole M87
Scientists have released new images of the supermassive black hole at the center of the galaxy Messier 87 (M87), located 55 million light-years from Earth. These images, captured by the Event Horizon Telescope (EHT), provide unprecedented insight into the dynamic environment surrounding the black hole, especially the structure and strength of its magnetic fields.
The EHT, in collaboration wiht the Max Planck Institute for Radio Astronomy (MpiFR), analyzed three images to trace the changes in the area around the black hole. The consortium wrote in a press release that the new polarization information reveals details about the magnetic field structure.
M87 is incredibly massive – over six billion times the mass of our sun. understanding the magnetic fields around it is crucial because they are believed to play a key role in launching powerful jets of matter that extend far beyond the black hole itself.
These magnetic fields are thought to exist within a disk of superheated gas (plasma) circling the black hole, twisting into “magnetic towers” brimming with energy. This energy then drives matter outwards in jets, stabilized by the magnetic fields, and traveling at nearly the speed of light. these jets, originating from a small area near the black hole, significantly impact the galaxy’s star formation and energy distribution, influencing its overall evolution.
According to Dr. Von Fellenberg, a fellow at the University of Toronto’s Canadian Institute for Theoretical Astrophysics, the research highlights two key findings: the polarization data shows notable variability, while the overall intensity (topographic) images of M87* remain consistent.
This is expected, as the total intensity reflects the black hole’s gravitational potential, which doesn’t change rapidly. Though, the variability in polarization indicates dynamic changes in the magnetic field structure around the black hole.