Publications (20)
A spectro-polarimetric study of the planet-hosting G dwarf, HD 147513
Gaitee A. J. Hussain, Julian David Alvarado-Gómez, Jason Grunhut +12
The results from a spectro-polarimetric study of the planet-hosting Sun-like star, HD 147513 (G5V), are presented here. Robust detections of Zeeman signatures at all observed epoch…
The spin of accreting stars: dependence on magnetic coupling to the disc
Sean Matt, Ralph E. Pudritz
We formulate a general, steady-state model for the torque on a magnetized star from a surrounding accretion disc. For the first time, we include the opening of dipolar magnetic fie…
Does Disk Locking Solve the Stellar Angular Momentum Problem?
Sean Matt, Ralph E. Pudritz
We critically examine the theory of disk locking, which assumes that the angular momentum deposited on an accreting protostar is exactly removed by torques carried along magnetic f…
The effect of magnetic topology on thermally-driven winds: towards a general formulation of the braking law
Victor Réville, Allan Sacha Brun, Sean Matt +2
Stellar winds are thought to be the main process responsible for the spin down of main-sequence stars. The extraction of angular momentum by a magnetized wind has been studied for…
Accretion-Powered Stellar Winds III: Spin Equilibrium Solutions
Sean Matt, Ralph E. Pudritz
We compare the stellar wind torque calculated in a previous work (Paper II) to the spin-up and spin-down torques expected to arise from the magnetic interaction between a slowly ro…
Accretion-powered Stellar Winds as a Solution to the Stellar Angular Momentum Problem
Sean Matt, Ralph E. Pudritz
We compare the angular momentum extracted by a wind from a pre-main-sequence star to the torques arising from the interaction between the star and its Keplerian accretion disk. We…