New Findings from the Alpha Magnetic Spectrometer
The Alpha Magnetic Spectrometer (AMS) mounted on the International Space Station has released new data revealing four clearly separated classes of cosmic rays spanning twenty chemical elements. These observations differ from the predictions of prevailing astrophysical models, which have assumed a single source for high‑energy particles.
The analysis covers particles from hydrogen up to zinc and highlights the abundance patterns of carbon, nitrogen and oxygen—elements forged in supernova explosions. The measurements indicate that these elements appear in four distinct groups, each characterized by different energies and arrival directions.
- Four cosmic‑ray classes identified
- Twenty elements from hydrogen to zinc measured
- Results contradict current cosmic‑ray models
Scientists suggest that multiple astrophysical processes, such as supernova remnants and pulsar winds, may simultaneously accelerate particles. The discovery implies that the composition of the interstellar medium is more intricate than previously thought.
Additional observations and theoretical work are planned to pinpoint the origins and acceleration mechanisms of the four classes. The AMS thus remains a key instrument for probing the high‑energy particles permeating the universe.