Mr Adam Finley
The Effects of Real Magnetic Field Structures on the Winds from Sun-Like Stars
I wish to understand the complex interaction of stellar magnetic fields and plasma in stellar winds and other astrophysical fluids. The Sun is seen to undergo a 22 year cycle of magnetic activity, over which time the overall dipolar field structure is seen to reverse and then be restored. Through the use of Zeeman Doppler Imaging (ZDI) observations, other sun-like stars have been seen to have cyclic variability in their magnetic activity. This modified field topology is believed to impact the spin-down forces on the star, and thus effect predictions for the age of the star (Gyrochronology).
Working in the AWESoMeStars research group, supervised by Sean Matt, I create magnetohydrodynamics (MHD) simulations of stellar winds from sun-like stars, where I explore the impact of imposed magnetic field structures on the morphology and structure within the wind. My research is mainly focused on creating torque scaling laws for evolutionary models of stellar spin down, which take into account the changing magnetic field structure seen in many active stars. I am attempting to create a systematic study of the simplest field combinations, dipole, quadrupole and octupole in order to produce torque scaling relations capable of including activity cycles and changing magnetic field topologies.
- TOUPIES Wrap-up - Meeting at Universite de Montpelier France, November 2016
- HPC Methods for Computational Fluid Dynamics and Astrophysics - Workshop at CINECA Bologna Italy, November 2016
- Star Formation - Conference at Exeter University, September 2016
- Modern Observations, Theory and Techniques for Solar and Stellar Physics - Meeting at Warwick University, July 2016
MPhys Physics with Astrophysics and Space Science (2012-2016)