LHAASO’s Giant Peanut: A Challenge to Extreme Particle Physics
Published: October 13, 2025
Duration: 18:50
Join us as we discuss the groundbreaking discovery by the LHAASO Collaboration of a vast and unique ultra-high-energy (UHE) $\gamma$-ray source. This mysterious object, nicknamed the **"Peanut"** for its distinctive asymmetric shape, spans approximately $0.45^\circ \times 4.6^\circ$ and is located far off the Galactic plane, at a high Galactic latitude ($b \approx -17.5^\circ$), a region where UHE $\gamma$-ray sources are typically sparse.
**Key Takeaways:**
* **Extreme Energies Detected:** The LHAASO (Large High Altitude Air Shower Observatory) detected $\gamma$-rays in this region exceeding 100 TeV (Tera-electronvolts), with the...