Investigating magnetic activity in very stable stellar magnetic fields: long-term photometric and spectroscopic study of the fully convective M4 dwarf V374 Peg

K. Vida, L. Kriskovics, K. Oláh +8

The ultrafast-rotating ($P_{\mathrm{rot}}\approx 0.44d$) fully convective single M4 dwarf V374 Peg is a well-known laboratory for studying intense stellar activity in a stable magnet…