Direct detection of a magnetic field in the photosphere of the single M giant EK Bootis
Direct detection of a magnetic field in the photosphere of the single M giant EK Bootis
We study the fast rotating M5 giant EK Boo by means of spectropolarimetry to obtain direct and simultaneous measurements of both the magnetic field and activity indicators, in order to infer the origin of the activity in this fairly evolved giant. We used the new spectropolarimeter NARVAL at the Bernard …