A recent study has linked the M87 black hole to its 3,000-light-year-long jet stream, enhancing our understanding of how black holes launch particles at near-light speed.
A new study has established a connection between the famous M87 black hole—the first black hole ever imaged—and its powerful cosmic jet. This research reveals how the black hole launches particles at nearly the speed of light.
Scientists have traced a 3,000-light-year-long cosmic jet streaming from M87 to its likely source point, thanks to “significantly enhanced coverage” provided by the global Event Horizon Telescope. The findings, published in the journal Astronomy & Astrophysics this week, could help clarify the origins and mechanisms behind the vast cosmic jets emitted by black holes.
M87 is a supermassive black hole located in the Messier 87 galaxy, approximately 55 million light-years from Earth. It is estimated to be 6.5 billion times the mass of the Sun. The first image of M87 was released to the public in 2019, following data collection by the Event Horizon Telescope in 2017.
Dr. Padi Boyd of NASA highlighted the significance of M87, noting its active nature. “Just a few percent are active at any given time. Are they turning on and then turning off? That’s an idea,” she explained in a video about the black hole. Boyd emphasized the presence of very high magnetic fields necessary for jet formation, stating, “This image is observational evidence that what we’ve been seeing for a while is actually being launched by a jet connected to that supermassive black hole at the center of M87.”
M87 not only consumes surrounding gas and dust but also emits powerful jets of charged particles from its poles, forming the extensive jet stream. This dual activity has been discussed in various scientific publications, including Scientific American and Space.com.
“This study represents an early step toward connecting theoretical ideas about jet launching with direct observations,” said Saurabh, the team leader at the Max Planck Institute for Radio Astronomy. He added, “Identifying where the jet may originate and how it connects to the black hole’s shadow adds a key piece to the puzzle and points toward a better understanding of how the central engine operates.”
The Event Horizon Telescope is a global network of eight radio observatories that work together to detect radio waves from astronomical objects, including galaxies and black holes. This collaboration effectively creates an Earth-sized telescope, allowing for unprecedented observations of these distant phenomena. The term “Event Horizon” refers to the boundary surrounding a black hole beyond which light cannot escape, as defined by the National Science Foundation.
The findings were derived from data collected by the Event Horizon Telescope in 2021. However, the authors of the study noted that while the results are robust under the assumptions and tests performed, definitive confirmation and more precise constraints will require future observations with higher sensitivity and improved coverage through additional stations and an expanded frequency range.
These advancements in our understanding of black holes and their jets mark a significant step forward in astrophysics, paving the way for future research and discoveries in the field, according to Space.com.