GJ 523b is a Massive, 170 Myr-old Mega-Earth, Likely on a Polar Orbit

Maxwell A. Kroft, Thomas G. Beatty, Joseph M. Salzer +18

We use WIYN/NEID radial velocity measurements to confirm the planetary nature and measure the mass of the TESS transiting exoplanet candidate around the mid-K dwarf GJ 523 ($V=9.23…