Nov 28, 2024
Astrophysicists find evidence that Alfvén waves lead to heat generation in the magnetosphere
Posted by Cecile G. Tamura in categories: particle physics, space
In the vast reaches of space, invisible forces shape the behavior of charged particles in ways that are only now beginning to be fully understood.
A small team of astrophysicists at the University of California, Los Angeles, working with colleagues from the University of Texas at Dallas and the University of Colorado, Boulder, has found evidence that Alfvén waves in space plasmas speed up ion beams, resulting in the creation of small-scale acoustic waves that in turn generate heat in the magnetosphere.
In their study, published in the journal Physical Review Letters, the group used data from the four-spacecraft Magnetospheric Multiscale (MMS) mission that took place in 2015 to prove a theory about heat generation in the magnetosphere.