Supermassive black holes are some of the most powerful engines in the universe. These giants sit at the centers of galaxies, ...

More information: F. Varsi et al, Evidence of a Hardening in the Cosmic Ray Proton Spectrum at around 166 TeV Observed by the GRAPES-3 Experiment, Physical Review Letters (2024). DOI: 10.1103 ...

NTNU researchers may have found the answer to one of the big, unanswered questions in physics. The universe is full of ...

Recently, this understanding has been challenged by the detection of unexpected spectral structures in the cosmic ray proton energy spectrum. Now, scientists take this further with high-statistics ...

Here, we show that ion-neutral collisions in a molecular cloud adjacent to the remnant steepen the energy spectrum of accelerated particles. We calculate the gamma-ray spectrum resulting from the ...

near Tokyo have previously reported a cosmic-ray energy spectrum that shows no obvious sign of a cut-off. “This excited many theorists,” says Douglas Bergman of Rutgers University in ...

In a new study, an international team of researchers report the results of a direct measurement of the cosmic ray helium spectrum using the data collected by CALET. In contrast to the single power ...

New images of the first black hole ever photographed may finally shed light the origins of mysterious cosmic rays that shoot through ... the entire electromagnetic spectrum, from invisible radio ...

They clearly observed a "bending" structure in the gamma-ray spectrum at tens of TeV, indicating the acceleration limit of cosmic rays in this region. The energy spectrum measured by LHAASO can be ...