A 23-million-light-year jet system dwarfs 140 Milky Way galaxies
In short: Imagine a structure so vast it stretches across the void between galaxy groups, fueled by a supermassive black hole. Generating energy at rates exceeding our sun by trillions every second, this massive cosmic formation called Porphyrion demonstrates how supermassive black holes construct universal structures.
The discovery of Porphyrion highlights the profound relationship between supermassive black holes and their host galaxies. While many people view black holes as isolated gravitational sinks, research by astrophysicists like Dr. Becky Smethurst focuses on how they actively influence galactic evolution. Specifically, the energy output from a disk of material orbiting a growing black hole can be powerful enough to halt a galaxy's ability to form new stars. Research specifically examines how these energy outputs might inhibit star formation within a galaxy. This dynamic illustrates the active role black holes play in shaping their cosmic neighborhoods.
Porphyrion stands out as one of the most powerful and largest jet systems ever observed, spanning approximately 23 million light-years. To put its scale in perspective, it is equivalent to lining up 140 Milky Way galaxies side-by-side. These twin jets erupt from a supermassive black hole located roughly 7.5 billion light-years away. Because of this distance, astronomers are seeing these structures as they existed when the universe was only about 6.3 billion years old—roughly half its current age. The system was identified using data from the LOFAR radio telescope. It is named after a giant offspring of Gaia from Greek mythology. Another similar structure, Alcyoneus, spans roughly 100 Milky Ways.
The existence of such massive outflows in the early universe suggests that black holes played a much more significant role in galactic development than previously suspected. These jets spread enormous amounts of energy into the surrounding space, affecting both their host galaxies and neighboring systems. By studying these megastructures, scientists can better understand the co-evolution of galaxies and the violent processes that shaped the cosmos during its formative years. These jets are characterized by an extremely rapid rate of matter falling into the black hole. The discovery was officially detailed in a paper published in the journal Nature on September 18.
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Sources
- Summary by Intellect · source: The biggest JETS from a BLACK HOLE ever found
- Also: Black hole blasts largest jet ever seen at 23 million light-years long
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