The Sun doesn’t just shine—it also shapes the high-energy γ-ray sky by interacting with cosmic rays. Using 15 years of Fermi-LAT data, researchers detected the solar γ-ray halo in unprecedented detail and linked it to the same cosmic ray electrons measured near Earth. This study reveals how γ-ray observations can uncover the invisible influence of the Sun’s magnetic field across the heliosphere.
Today’s authors take a new look at gamma-ray emission from Andromeda to find that it looks pretty different from what was found before!
Today’s authors aim to answer the question: Where are very high energy gamma rays coming from?
Will future gamma-ray space telescopes be able to detect gamma-rays coming from invisible dark matter halos?
The observed spectra of astrophysical neutrinos and gamma rays do not match up using current models. Today’s paper may have solved this quandary.
In the latest post on our sister site Particlebites, Chris Karwin writes about new observations of the gamma ray excess at the Galactic center from Fermi.