Princeton researchers have found that the M87* black hole emits energy outward, contributing to the formation of a giant jet. This discovery challenges traditional views about black holes and may be further tested with advanced telescopes. This new understanding opens up new avenues in comprehending black hole dynamics, though the source of the jet’s power is not definitively explained. This research was conducted with the support of the Princeton Gravity Initiative, a Taplin Fellowship, the National Science Foundation (grant 2307888), and a Simons Foundation Investigator Award.
The findings were published in the Astrophysical Journal on November 14, 2023. The research was spearheaded by Princeton astrophysicists including Andrew Chael, Alexandru Lupsasca, George N. Wong, and Eliot Quataert. With origins in Einstein’s theory of relativity, the researchers made intricate observations involving the black hole and its magnetic field to decipher the direction of energy flow. The researchers found that energy near the event horizon of black hole M87* is pushing outward rather than inward. They also verified the prediction that black holes lose rotational energy.
The researchers have concluded that while it is very likely that the black hole is powering the jet, it cannot be proven conclusively. Furthermore, the team has not conclusively shown that the black hole’s rotation “really powers the extragalactic jet.” Though the energy levels shown in their model were consistent with what a jet would require, they could not rule out the possibility that the jet could be powered by spinning plasma outside the black hole. Nevertheless, it is expected that the next generationEvent Horizon Telescope will further explore and confirm these findings.
The research team was also awarded the 2024 New Horizons Prize in Physics from the Breakthrough Prize Foundation for their black hole research. The research was also supported by a Taplin Fellowship, the National Science Foundation, a Simons Foundation Investigator Award as well as by the Princeton Gravity Initiative.
Source: scitechdaily.com
