Study of the Interplanetary Coronal Mass Ejection of November 3, 2021

Interplanetary coronal mass ejections (ICMEs) transport magnetized plasma from the Sun. Magnetic clouds (MC) are closed structures immersed within ICMEs and form large-scale magnetic flux ropes. Their evolution in the solar wind is linked to the interaction with the surrounding solar wind and the magnetic force. In addition, these structures play a fundamental role in the propagation of solar energetic particles and cosmic rays observed by analyzing the flux variations of these particle populations. On November 3, 2021, one of these structures was observed at different solar distances by instruments aboard Solar Orbiter (SO) and instruments in Earth orbit.

Magnetic clouds are closed structures immersed within interplanetary coronal mass ejections. These structures have an important effect on the propagation of solar energetic particles and cosmic rays that is observed as variations in the flux of these particle populations. The evolution of a MC observed on November 3, 2021, is analyzed using in situ observations made by Solar Orbiter (SO), at 0.84 AU, and ACE, at 1 AU, spacecrafts when they were aligned with the Sun. The magnetic configuration of the MC is described using a magnetic model by observing its evolution at both heliodistances and the effect on solar energetic particles and cosmic rays.