TIC~257060897b: an inflated, low-density, hot-Jupiter transiting a rapidly evolving subgiant star

M. Montalto, L. Malavolta, J. Gregorio +7

We report the discovery of a new transiting exoplanet orbiting the star TIC~257060897 and detected using {\it TESS} full frame images. We acquired HARPS-N time-series spectroscopic…