Discovery of magnetic A supergiants: the descendants of magnetic main-sequence B stars
Discovery of magnetic A supergiants: the descendants of magnetic main-sequence B stars
In the context of the high resolution, high signal-to-noise ratio, high sensitivity, spectropolarimetric survey BritePol, which complements observations by the BRITE constellation of nanosatellites for asteroseismology, we are looking for and measuring the magnetic field of all stars brighter than V = 4. In this paper, we present circularly polarized …