Magnetic field and prominences of the young, solar-like, ultra-rapid rotator V530 Persei T.-Q. Cang, P. Petit, J.-F. Donati, C. P. Folsom, M. Jardine, C. Villarreal D’Angelo, A. A. Vidotto, S. C. Marsden, F. Gallet and B. Zaire A&A, 643 (2020) A39 Published online: 29 October 2020 DOI: 10.1051/0004-6361/202037693