Story perspectives

New Discoveries: Micro-Quasars Challenge Cosmic Ray Origins

11/16/2025

49 4

Summary

Story summary

Large High Altitude Air Shower Observatory (LHAASO) identifies micro-quasars powered by black hole accretion as sources of ultra-high-energy cosmic rays, challenging the view that supernova remnants are the sole contributors.
The observatory detected gamma rays from five micro-quasars above 1 PeV, proving they can accelerate particles to extreme energies.
The findings clarify the knee feature in the cosmic ray spectrum by linking it to black hole systems.

1 of 1

Story summary

Large High Altitude Air Shower Observatory (LHAASO) identifies micro-quasars powered by black hole accretion as sources of ultra-high-energy cosmic rays, challenging the view that supernova remnants are the sole contributors.
The observatory detected gamma rays from five micro-quasars above 1 PeV, proving they can accelerate particles to extreme energies.
The findings clarify the knee feature in the cosmic ray spectrum by linking it to black hole systems.