The ribbon is roughly perpendicular to the interstellar magnetic field while cosmic rays stream, on average, along the interstellar magnetic field. (The particles themselves are created from interactions between the solar wind and interstellar matter.)
In the longer term, Schwadron said work like this will help scientists better understand more about the boundary between our solar system and interstellar space. This is a region that only one mission — NASA‘s Voyager 1 spacecraft — has reached so far, and scientists know little about what that environment is like.