Scientists Unlock New Secrets of Black Hole jets with Revolutionary Simulations
Table of Contents
New research from Goethe University Frankfurt reveals a previously unknown mechanism powering the immense energy jets emitted by black holes,perhaps reshaping our understanding of galactic evolution.
For decades,astronomers have observed powerful jets of energy and matter shooting out from the hearts of galaxies,frequently enough originating from supermassive black holes. These jets, first noted nearly a century ago by astronomer Heber Curtis emanating from the galaxy M87, play a crucial role in distributing energy and influencing the development of entire galaxies. Now, a team of theoretical astrophysicists has developed a sophisticated numerical code to precisely model how these cosmic phenomena are created.
A Century of Observation, A New Era of Understanding
The mystery surrounding these jets began long before the first direct image of a black hole was captured by the Event Horizon Telescope Collaboration in 2019. In 1918, scientists observed a strange ray originating from the center of what was than described as a “fog without stars” – now known to be the giant galaxy M87. For nearly two centuries, the nature of this “fog” and the source of the ray remained a puzzle.
Magnetic Reconnection: A Key to Unlocking the Power
The team’s breakthrough lies in their advanced simulations, which demonstrate that magnetic reconnection, plays a notable role. “Magnetic field lines break open and newly combine, which convert magnetic energy into heat, radiation and plasma eruptions,” explained a lead researcher.
Relativistic Plasmas and Supercomputer Power
The FPIC code simulates the behavior of countless charged particles and intense electromagnetic fields under the extreme gravity of a black hole. These simulations are computationally demanding, requiring millions of CPU hours on the Frankfurt supercomputer “Goethe” and the stuttgart supercomputer “HAWK” to solve the complex equations of general relativity and electromagnetism.
The simulations revealed that intense reconnection activity occurs at the equatorial level of the black hole, leading to the formation of a “chain of plasmoids” – condensed plasma “blisters” – moving at near-light speed. This process is linked to the generation of particles with negative energy, driving powerful astrophysical events like jets and plasma eruptions.
Unveiling New Forces in the Cosmos
“Our results open up the fascinating possibility that the blandford-Znajek mechanism is not the only astrophysical process that can extract rotary energy from a black hole,” stated Dr. Filippo Camilloni, a key developer of the FPIC code, “but that the magnetic reconnection also contributes to it.”
According to Prof. Rezzolla, this work demonstrates how energy is efficiently extracted from rotating black holes and channeled into jets, contributing to the extreme luminosity of active galaxy nuclei and the acceleration of particles to velocities approaching the speed of light.”It is incredibly exciting and fascinating to be able to better understand, through sophisticated numerical codes, what is happening near a black hole,” he said. “At the same time, it is even more worthwhile to be able to explain the results of these complex simulations with strict mathematical treatment – as we did in our work.”
For more details, contact:
Prof. dr. Luciano rezzolla
Institute for Theoretical Physics
Goethe University Frankfurt
Tel: +49 (69) 798-47871
[email protected]
https://astro.uni-frankfurt.de/rezzolla/
Publication: Claudio Meringolo, Filippo Camilloni, Luciano Rezzolla: Electromagnetic Energy extraction from Kerr Black Holes: Ab-Initio Calculations. The Astrophysical Journal Letters (2025) https://doi.org/10.3847/2041-8213/ae06a6
