On the contradictory case of the binary system HD 81809 hosting two pulsating solar-like stars observed by TESS

Maria Pia Di Mauro, Camilla Pezzotti, Nuno Moedas +8

We present a new comprehensive study of HD81809, a nearby binary system of two solar-like stars showing high-amplitude X-ray emission and a well-defined 8-year solar-like magnetic…