Red Giant Winds Driven by Alfvén Waves with Magnetic Diffusion

Takeru K. Suzuki, Keiichi Ohnaka, Yuki Yasuda

We investigate the driving mechanism of Alfvén wave-driven stellar winds from red giant stars, Arcturus ($\hat{I}\pm$ Boo; K1.5 III) and Aldebaran ($\hat{I}\pm$ Tau; K5 III), with nonideal MHD si…