Primary
galactic cosmic rays enter the solar system from interstellar space, and are made up of protons with energies above 100 MeV, extending up to astronomically high energies.
If Svensmark and other researchers are correct the switch between these states could be due to weakness in the solar wind leading to more
galactic cosmic rays entering the atmosphere and increasing the nucleation for cloud droplets (just as in a «cloud chamber»).
Not exact matches
Numerical simulations performed by the GRAPES - 3 collaboration on this event indicate that the Earth's magnetic shield temporarily cracked due to the occurrence of magnetic reconnection, allowing the lower energy
galactic cosmic ray particles to
enter our atmosphere.
A reduction of the solar wind during a prolonged solar minimum event would cause more
galactic cosmic rays to
enter the earth's atmosphere which would promote more aerosol formation thus more cloud nucleation.