Magnetic field monitoring of four massive A-F supergiants

Gregg Wade, Mary Oksala, Coralie Neiner +2

We report magnetic field measurements spanning about 15 years of four massive ($7.5-15M_{\odot }$) supergiant stars: $\alpha$ Per (HD\,20902, F5Iab), $\alpha$ Lep (HD\,36673A, F0Ib), $\eta$ Leo (…