Parker vector

The Parker vector, named after the astrophysicist Eddie Parker who developed it, is a mathematical representation used in solar physics to describe the three-dimensional orientation of the solar wind and the magnetic field associated with it. It is often used in the study of astrophysical plasma and space weather phenomena. The Parker vector is typically expressed in a spherical coordinate system and encompasses three components: 1. **Radial Component**: This measures the magnitude of the solar wind flow moving away from the Sun.