Researchers from the Chinese Academy of Sciences found that the intensity of cosmic rays in the central molecular zone (CMZ) is much lower than that of the surrounding cosmic ray ‘sea’.
It is possible that the solar masses in the CMZ (about 60 million of them) are already particle clouds, which block cosmic rays.
“We conclude that CMZ should play a role in preventing [الأشعة الكونية] from entering the center area itself. Several mechanisms can hinder the penetration of cosmic rays into molecular clouds, such as the effect of magnetic field compression and intrinsic magnetodynamic perturbation. Taking an analogy to the effect of solar modulation in which low-energy cosmic rays outside the solar system are blocked by the magnetic field associated with the solar wind, we briefly discuss the suppression of penetration of cosmic rays into the CMZ.
The CMZ is home to complex giant molecular clouds, a type of interstellar cloud that allows the formation of molecules, usually hydrogen.